Why Extreme Automatics? We are the Premier 2004R Builder in the industry. In this section we are going to explain some details on our product and compare our 2004R product to the competitors product as advertised. You decide. The BS items Listed in Red. Advantage listed in Green.
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What makes the EA 2004R? Some details on the build.
Pump - The EA pump is the heart of the build. You must have consistent pressure and volume for the 200 to live. We start with a stock Gm core. We parallel deck the pump halves 90deg of centerline and set the rotor and slide clearance at the minimum. We then plate lap the halves flat to less than .00001" to eliminate and possibility of and cross leaks. There is no lathe or mill that can achieve this. We drill the pump drain, Replace and stake the pump bushing. The guys who say they use a new GM pump are at a huge disadvantage. We use quality pump parts for the assembly including a Harden stator in every transmission we build. We use our exclusive pump slide spring, PR spring, PR valve and boost valves. This produces a pump that will provide 275lb + line pressure and plenty of volume. No other builder we know of has this capability. Some say this is over kill. We believe this is just one reason we build a superior product.
Internals - We replace all seals, gaskets, bushings, roller bearings. We rebuild front, rear and overdrive planets in every transmission using new thrust washers, bearing and pinions. We rolerize the low roller center support to remove the plastic thrust. We also roller the rear planet to remove the plastic low roller washer that is prone to failure. Harden sun gear shell in every unit. We surface grind the direct drum so it perfectly round. We weld the direct sun shell contact area and heat treat to prevent future wear. We use the HD low roller clutch v/s the after market std. duty that most all use.
Clutches - Od 3 clutch, Direct 7 clutch, Forward 5 clutch, LR 7 clutch. Hi carbon Band is always installed in every unit. We use Hi energy performance friction and metallic fiber frictions in all units.
This is just an outline as to the time and materials that goes into a EA 2004R. We believe we build the best product that money can buy. Check out the comparison and decide for yourself.
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| Extreme Automatics v/s Bow Tie Overdrives |
EA Stage 1 $1395.00
- The build starts with only select cores
- Case is media blasted and race preped
- All bushing are replaced
- All Torrington bearings are replaced
- All thrust washers are replaced
- All seals and gaskets are replaced
- Harden stator installed in every unit
- Harden Sun Gear Shell
- Carbon Band installed in every unit
- Billet anchor pin installed in every unit
- New Pump assembly installed in every unit
- EA Hi Pressure regulator valve and spring
- EA Hi RPM pump priming spring
- Billet pump rings
- Pump drains drilled
- Pump bushing staked
- Tensioned Teflon sealing rings are used
- 3 clutch OD
- Billet Aluminum Direct Apply Ring
- Tested and sealed center support
- Race clearances
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Welded and Heat Treated Forward Drum
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BR Servo
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HO Low Roller Clutch
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New OD Roller Clutch
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Hi Performance Calibrated Valve Body **BRC
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6 clutch direct Hi Performance Friction
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Lock up or Non Lock-up
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Governor Calibrated for approx 5000 RPM shifts
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10 Vane pump Rotor and Slide assembly
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1 Year Warranty ( 90 days on Forward Clutch Drum)
| BTO High Performance Street - $1395.00
Our Level Two Transmissions have all the wonderful features of our Level One Transmission, but their built to handle more horsepower and feature firmer and quicker shifts. These units are still quite street able, however, they should be installed into performance oriented cars and trucks. They will handle a steady diet of around 450/500 hp and 400/450 ft/lbs. of torque. This Level Transmission is definitely a huge step up from what the popular brand name companies offer (according to their descriptions) and they still charge more! We have sold thousands of this Level Transmission over the last seven years with tremendous success. They have proven to be very reliable and tough in serious street performance vehicles.
Our Level Two Transmissions feature all the components and modifications built into our
Level One Transmission plus the following upgrades:
? New overrun and low/reverse sprag clutches.
? Our own custom machined billet servo with 11% larger surface area than Grand National servos.
? New hardened steel stator shaft.
? Upgrade to a ten vane pump rotor with new rotor, vanes, slider, "O" ring, seal and rubber spring and rotor guide. Thirteen vane pump is optional at no extra charge.
? Hardened steel pump guide rings to prevent breakage in severe high rpm operating situations.
? Main boost valve is upgraded to a .500" main boost valve and our oversized low/reverse boost valve produce higher operating pressures for firmer, quicker shifts and better clamping pressures in all gears.
? Reprogrammed for more aggressive shift timing and feel.
This is basic rebuild of the 2004R nothing special.
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EA Stage 1 $1395.00
- The build starts with only select cores
- Case is media blasted and race preped
- All bushing are replaced
- All Torrington bearings are replaced
- All thrust washers are replaced
- All seals and gaskets are replaced
- Harden stator installed in every unit
- Harden Sun Gear Shell
- Carbon Band installed in every unit
- Billet anchor pin installed in every unit
- New Pump assembly installed in every unit
- EA Hi Pressure regulator valve and spring
- EA Hi RPM pump priming spring
- Billet pump rings
- Pump drains drilled
- Pump bushing staked
- Tensioned Teflon sealing rings are used
- 3 clutch OD
- Billet Aluminum Direct Apply Ring
- Tested and sealed center support
- Race clearances
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Welded and Heat Treated Forward Drum
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BR Servo
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HO Low Roller Clutch
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New OD Roller Clutch
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Hi Performance Calibrated Valve Body **BRC
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6 clutch direct Hi Performance Friction
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Lock up or Non Lock-up
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Governor Calibrated for approx 5000 RPM shifts
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10 Vane pump Rotor and Slide assembly
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1 Year Warranty ( 90 days on Forward Clutch Drum)
You can see side by side this competitors best unit still does not compare to our entry level unit at $300 less money. I was going to compare the stage 2 but that would be a blow out.
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BTO Extreme Duty Street / Strip - $1695.00
In order to raise performance above the Level Two units, the input shaft/drum and sun shell assembly
strength must be addressed. Anyone who has built serious Th-2004R Transmissions has, at some time experienced failure of one or more of these components. Our Level Two Transmissions parts have proven to be reliable to the torque levels described in Level Two and our return rate demonstrates this. We experience less than 1% failure on our Level Two units.
Once you get into these engine torque and horsepower levels above the Level Two Transmissions, the input shaft to drum connection point becomes prone to fracture and the spline section will start ripping off the sun shell. Our Level Three Transmissions have the following parts added for increased strength and reliability above 450 hp and 450 ft/lbs. of torque. These components are specifically engineered to help prevent breakage in applications with exceptionally stout motors. Details of these parts can be seen at www.extreme-duty.com.
While the late model factory sun shells are definitely a big improvement, they are certainly not up to the hard core use that our sun shells are built for. Our Level Three Transmission includes the following upgrades from Level Two: Heavy duty input shaft/drum assembly, the reinforced sun shell package and fourth gear servo. These parts will live at horsepower and torque levels over 60% greater than the stock components are able to tolerate!
Our Level Three units have everything included in Level One and Level Two plus the Extreme-Duty package!
? Kolene steels and Red Eagle frictions.
? Racing level band.
? Custom machined input shaft using 300M aerospace alloy. (Not Sure Why you would replace the input and not the weakest part in the 200 The Forward Drum)
? Modified line bias system.
? Extra modifications to spacer plate for aggressive performance.
? Custom machined anodized red billet servo for greater clamping performance.
? Main boost valve is upgraded to a .500" main boost valve and our oversized low/reverse boost valve produce higher operating pressures for firmer, quicker shifts and better clamping pressures in all gears.
2004R Lesson 101. I have no idea what these guys are talking about but its not a 2004R. Its looks like a copy and paste of 4L60 info. The 2004R input shaft in no way connects to the sun gear shell. The input is attached to the OD planet and then OD ring gear that drives the forward drum that drives the output shaft. The Direct drum is the contact point for the sun gear shell. All the power goes threw the Forward drum. That's one reason we stress the importance of a billet forward drum. The forward drum is the most common part to fail in the 2004R under power. The servo has nothing to do with 4th gear its only used for 2nd. The 4L60E uses servo for 4th gear. I am sure they were thinking the customer will not to know the difference.
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| Extreme Automatics v/s PATC |
EA Stage 1 $1395
The build starts with only select cores
Case is media blasted and race preped
All bushing are replaced
All Torrington bearings are replaced
All thrust washers are replaced
All seals and gaskets are replaced
Harden stator installed in every unit
Harden Sun Gear Shell
Carbon Band installed in every unit
Billet anchor pin installed in every unit
New Pump assembly installed in every unit
EA Hi Pressure regulator valve and spring
EA Hi RPM pump priming spring
Billet pump rings
Pump drains drilled
Pump bushing staked
Tensioned Teflon sealing rings are used
3 clutch OD
Billet Aluminum Direct Apply Ring
Tested and sealed center support
Race clearances
Welded and Heat Treated Forward Drum
BR Servo
HO Low Roller Clutch
New OD Roller Clutch
Hi Performance Calibrated Valve Body **BRC
6 clutch direct Hi Performance Friction
Lock up or Non Lock-up
Governor Calibrated for approx 5000 RPM shifts
10 Vane pump Rotor and Slide assembly
1 Year Warranty ( 90 days on Forward Clutch Drum)
Add on 12" torque Converter W/1 year warranty + $295
Home delivery + $0
Total With Converter $1790.00
What are you getting from those guys? What are you getting if you do not add the HI PO frictions? I build units for a living and I have never seen Hi performance frictions as an add on.
| This high performance Grand National type 200-4R comes with a larger than stock intermediate billet servo which gives firmer 1-2 and 2-3 shifts. This Superior / Fairbanks servo has an 11% larger apply area than the Grand National servo. It comes with the Mega Valve that raises the fluid pressure and gives a firmer shift and more holding power in all the gears, elevated pressure regulator spring, high output pump slide spring and an oversize low / reverse boost valve. These are the valves you?ve heard about. All of our high performance 200-4R transmissions come with a high performance Transgo shift kit installed and a heat treated sun gear shell. The stock seven-vane pump is replaced with a thirteen-vane high performance / high volume pump. Included is a 4th gear converter lock-up switch. The stock intermediate band is replaced with a black carbon fiber band. Also included in this package deal is a heavy-duty balanced stall converter that has furnace-brazed fins, a Sonnax carbon fiber clutch and needle bearings for added strength (#2). This stall converter can be ordered with stall speeds of 1800, 2000, 2300, 2600 or 2800 RPM and gives a faster launch than a stock converter. It also comes with a universal-fit throttle-valve cable and dip stick. The 200-4R transmission will fit all GM motors that have full size bell housings. This is a perfect choice, if you have a non-Chevy motor. You can expect a 30 to 40% increase in gas mileage (over a 3-speed) on the road. Every Transmission Tester on the PATC Dyno. Good for motors up to 400 horse power using pump gasoline, see chart below. Add torque converter and hard shaft upgrades if needed.
Compare all of these features with any other performance 200-4R transmission on the market. Why pay this much or more without getting all of the good parts? This performance 200-4R package deal can be yours for $1690.00 without a trade-in. The freight runs from free to $140.00 after freight discount in most cases. There's an extra charge for new speedometer parts. You must tell us if you need speedometer gears.
Its very hard to compare when this vendor does not list parts to compare. Has this company had any success? Do your home work. You will find they have nothing to offer but the fancy website. Once again I will compare my stage 1 to their best unit. Not listed is the add-on to the $1690 sale price You can go directly to their website to get each but I will list them to make it easier
After market Frictions +$135
Home Delivery +$75
Real Total after the BS $1840 + shipping
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| Extreme Automatics v/s Monster Transmissions |
EA Stage 1 $1395
The build starts with only select cores
Case is media blasted and race preped
All bushing are replaced
All Torrington bearings are replaced
All thrust washers are replaced
All seals and gaskets are replaced
Harden stator installed in every unit
Harden Sun Gear Shell
Carbon Band installed in every unit
Billet anchor pin installed in every unit
New Pump assembly installed in every unit
EA Hi Pressure regulator valve and spring
EA Hi RPM pump priming spring
Billet pump rings
Pump drains drilled
Pump bushing staked
Tensioned Teflon sealing rings are used
3 clutch OD
Billet Aluminum Direct Apply Ring
Tested and sealed center support
Race clearances
Welded and Heat Treated Forward Drum
BR Servo
HO Low Roller Clutch
New OD Roller Clutch
Hi Performance Calibrated Valve Body **BRC
6 clutch direct Hi Performace Friction
Lock up or Non Lock-up
Governor Calibrated for approx 5000 RPM shifts
10 Vane pump Rotor and Slide assembly
1 Year Warranty ( 90 days on Forward Clutch Drum)
No Need to spend much time here. Once again its a blow out.
| 200-4R Transmission, Remanufactured, Heavy Duty, Performance
[Part# MG27-2004R]
$1,695.00 $1,295.00
Mega Monster Transmissions
Engineered to Dominate?, the 200-4R Mega Monster transmission is tough enough to withstand the rigors of even the toughest street machines delivering tire-spinning shifts race after race. It is ideal for vehicles powered by engines producing up to 450 horsepower with a non-nitrous system using pump gasoline. Equipped with a Manual/Automatic valve body, most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a racetrack shift that bangs through the gears giving you all the right to say "Eat My Shift!". When you use the manual gear selection feature, the Mega Monster upshifts and downshifts when you move the shift lever. When you select the normal drive position, the transmission retains its firm, automatic shifts for the ease of driving you look for in an automatic transmission.
The Mega Monster Transmission features: the latest technology in our industry with only the best internal components for increased strength, dependable performance and monster torque capacity. All Monster transmissions are thoroughly inspected, blue printed and tested to ensure that your investment is completely flawless. For the system to operate properly, all throttle linkage, vacuum lines and kick-down components must be connected and adjusted properly.
? PRECISION MASTER OVERHAUL KIT
?SUPERIOR HIGH PERFORMANCE REPROGRAMMING SHIFT KIT
? SUPER PUMP
? DIRECT/REVERSE INPUT DRUM
? TURBINE INPUT CLUTCH HOUSING
? NEW HARDENED DRUM, INPUT
? UPDATED/MODIFIED ACCUMULATORS
? PERFORMANCE SERIES BAND
? UPDATED & MODIFIED GOVERNOR w/SPRING KIT & NYLON GEAR
? SUPERIOR HD SHIFT KIT w/RECALIBRATED VALVEBODY
? RECALIBRATED VALVE SHIFT PLATE FOR IMPROVED SHIFTS
? NEW HIGH FLOW FILTER
? NEW LOW/REVERSE HEAVY DUTY SPRAG
? NEW HEAVY DUTY OVERDRIVE SPRAG
? NEW SUPERIOR ALUMINUM HIGH PERFORMANCE SUPER SERVO
? FREE MONSTER DECALS
? ADDITIONAL $150 REFUNDABLE CORE CHARGE FOR MOST 200-4R UNITS
This is a Stock Rebuild on a 2004R They refer to it as the Mega Monster. The Best unit they sell.
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| Extreme Automatics v/s Performabilt |
EA Stage 1 $1395
The build starts with only select cores
Case is media blasted and race preped
All bushing are replaced
All Torrington bearings are replaced
All thrust washers are replaced
All seals and gaskets are replaced
Harden stator installed in every unit
Harden Sun Gear Shell
Carbon Band installed in every unit
Billet anchor pin installed in every unit
New Pump assembly installed in every unit
EA Hi Pressure regulator valve and spring
EA Hi RPM pump priming spring
Billet pump rings
Pump drains drilled
Pump bushing staked
Tensioned Teflon sealing rings are used
3 clutch OD
Billet Aluminum Direct Apply Ring
Tested and sealed center support
Race clearances
Welded and Heat Treated Forward Drum
BR Servo
HO Low Roller Clutch
New OD Roller Clutch
Hi Performance Calibrated Valve Body **BRC
6 clutch direct Hi Performance Friction
Lock up or Non Lock-up
Governor Calibrated for approx 5000 RPM shifts
10 Vane pump Rotor and Slide assembly
1 Year Warranty ( 90 days on Forward Clutch Drum)
Finally a Little competition. They are not very clear as to what is installed. I chose once again to compare the Stage 1 as the HP is comparable to what they advertise. The Stage 2 will handle much more than they advertise.
| Performabilt
This Transmission is suitable for applications to 500+ hp, and bolts to The Chevrolet, Buick, Pontiac and Cadillac (or BOP pattern engines).
Its features include the following components and modifications (Nothing but the best):
1. High Performance rebuild kit with additional frictions where possible Frictions are Alto, Raybestos and Allomatic performance. Special attention is given to the direct 3rd clutch.
2. A hardened sun shell is installed, eliminating the weak area of the transmission. We also replace the factory plastic thrust washer with a brass one, eliminating melt down and breakage issues with this washer.
3. A wide red lining band, with reinforced band pin area is mated to a resurfaced drum for max hold.
4. A Superior Super Servo is used to assure adequate apply, and special modifications are done during installation to reduce the downshift clunk associated with these large servos. Between the wide band above and the super servo holding is increased up to 50 percent over stock in second gear.
6. We use heavy duty front and rear sprags (one way roller clutch assemblies) to make sure this unit will take the torque.
7. We modified TCC apply to provide stronger engagement of the lockup clutch, and to enhance the increased durability of the higher (3000 up) stall torque converters if used. This modification also improves the life of any stall converter from stock up.
8. These transmissions have a PerformaBuilt Performance shift kit installed, and will have very positive shifts, which become progressively more aggressive as throttle is increased. No accumulators are blocked causing unnecessary strain in normal driving, but it still delivers that kick ass feel under throttle.
This unit also features many other modifications for performance and durability, helping it achieve its 500 plus horsepower capabilities. This transmission will take whatever you can dish out and we guarantee it! You won't find a better unit anywhere. And, with our customer service and the staying power that come with a larger company you can count on us to be there when you need us.
Priced On Website $1590
Nicely written. But what are you buying. This is a description of a rebuild of a stock 2004R with a shift kit. Where are the fast 2004R cars they have built the 2004R for ?
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| Extreme Automatics v/s TCI |
EA Stage 1 $1395
The build starts with only select cores
Case is media blasted and race preped
All bushing are replaced
All Torrington bearings are replaced
All thrust washers are replaced
All seals and gaskets are replaced
Harden stator installed in every unit
Harden Sun Gear Shell
Carbon Band installed in every unit
Billet anchor pin installed in every unit
New Pump assembly installed in every unit
EA Hi Pressure regulator valve and spring
EA Hi RPM pump priming spring
Billet pump rings
Pump drains drilled
Pump bushing staked
Tensioned Teflon sealing rings are used
3 clutch OD
Billet Aluminum Direct Apply Ring
Tested and sealed center support
Race clearances
Welded and Heat Treated Forward Drum
BR Servo
HO Low Roller Clutch
New OD Roller Clutch
Hi Performance Calibrated Valve Body **BRC
6 clutch direct Hi Performance Friction
Lock up or Non Lock-up
Governor Calibrated for approx 5000 RPM shifts
10 Vane pump Rotor and Slide assembly
1 Year Warranty ( 90 days on Forward Clutch Drum)
Once again still nothing. TCI 2004R success speaks for itself. They have had none.
| TCI Best Unit Priced $1960 Jegs Price $1749
All bushings replaced with quality OEM parts from Federal Mogul and Clevite
All seal rings replaced with OEM rings such as Sealed Power
All gaskets and seals replaced with OEM parts
All steels and friction elements replaced with new parts:
. Intermediate Band - Alto Red Eagle® extra-wide Powerband™
. Overdrive Clutches - Alto (3 used instead of OEM 2)
. Direct Clutches - Alto Red Eagle™
. Forward Clutches - Alto
. Low/Reverse Clutches - Alto
. Overrun Clutches - Alto
High-Performance turbo Buick Servo (BRF) assembly
Overdrive and Low Roller clutches replaced with new Borg Warner units
Pump modifications include a new 10-vane rotor; new stator support tube with hardened splines; enlarged seal drain back passages; staked pump bushing; front seal retainer
Higher mainline pressure from special TCI® pressure regulator spring and 0.500" diameter TV boost valve raises torque capacity
TCI® Trans-Scat® kit installed for firmer shifts
(381000) Shift points calibrated to turbo Buick (BRF) specifications by utilizing a properly calibrated governor and specially machined components in the valve body
Torque Converter Clutch Valve modified for improved lubrication flow during lock-up
Universal Lock-Up kit installed which makes retrofits into non-computer vehicles a snap
Each transmission assembly is statically tested for individual hydraulic circuit integrity
In short this is a stock rebuild to factory Grand National Specs. Nothing special here other than a clutch upgrade and a boost valve.
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| Extreme Automatics v/s Bowler Performance Transmissions |
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Bowler Transmissions
GM Transmission 2004R
(Up to 450 ft lbs of Torque)
- Master Kit ("Blue Frictions installed into the direct clutch drum)
- Rear Sump Style Filter
- Premium Wide Intermediate Band
- Torrington Bearing Kit
- Hardened Sun Shell
- Updated Pump w/10 Vain Rotor & Hardened Stator Shaft
- Hardened Pump Rings
- Pump Vanes
- High Performance Stall Converter (up to 2800 Stall) {*Can be upgraded to billet converter - up to 4000 stall}
- Forward Clutch Drum w.Hardened Intermediate Shaft
- Complete Roller Bearing Kit *Tighter Tolerances, Eminates Trust Washers
- Billet Intermediate Servo w/Adjustable Pin
- Teflon Stator Rings
- Bottle Lube Guard Transmission Additive
- Kooler Klean Cooler Flush
- Bowler Tru-Shift Throttle Correction System
- New Bowler 2004R Detent Cable
- Throttle Correction Arm (must specify carb. type Holley, Demon or Edelbrock)
- Detent Cable Bracket (must specify carb. type Holley, Demon or Edelbrock)
- Transmission Mount
- Inspection Cover (universal plastic)
- New Universal Fill Tube
- Speed-O Driven Gear (will be determined after sale)
- Hayden 514 High Performance Cooler
- Custom Aluminum Pan w/Rear
***DOES NOT INCLUDE SHIPPING & HANDLING***
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Bowler Transmissions
GM 200-4R Performance Transmission
(Up to 550 ft lbs of Torque)
- Master Kit *Blue frictions installed into the direct drum
- Rear Sump Style Filter
- Premium Wide Intermediate Band
- Torrington Bearing Kit
- Hardened Sun Shell
- Updated Pump /10 Vain Rotor & Hardened Stator Shaft
- Hardened Pump Rings
- Pump Vanes
- Custom Built Billet Lock-Up Converter (choice of stall 1800 - 4000 RPM)
- Forward Clutch Drum w/Hardened Intermediate Shaft
- Complete Roller Bearing Kit *tighter tolerances, eliminates thrust washers
- Billet Intermediate Servo with Adjustable Pin
- Billet OD Planet & Ring Gear
- Hardened Input Shaft
- Teflon Stator Rings
- Bottle Lube Guard Transmission Additive
- Kooler Klean Cooler Flush
- Bowler Tru-Shift Throttle Correction System
- Throttle Correction Arm (must specify carb. type)
- Detent Cable Bracket (must specify carb. type)
- Transmission Mount
- New Universal Fill Tube
- Inspection Cover (universal Plastic)
- Speed-O Driven Gear (will be determined after sale)
- Hayden 514 High Performance Cooler
- Custom Aluminum Pan w/Rear Sump
***DOES NOT INCLUDE SHIPPING & HANDLING***
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