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GM 2004R/200C
     Transmissions    Components
Dimensions
 
 
If you would like a specific recommendation from a TCI® product specialist based on your vehicle specs, click here.

Torque ConvertersBuick turbo Regal

Triple Tested Quality

TCI® strives to produce the best torque converters in the industry. Part of the process involves ensuring that each unit is built to spec. Triple TestedRegardless of what category or price level it may fall into, every TCI® torque converter is Triple Tested during assembly.

Once all the prep work on the component parts has been completed, the impeller is welded to the front cover. Immediately following this process, a pair of dial indicators are employed on a rotating table to verify that the impeller body and pump drive hub remain true.


Each unit is then pressurized and subjected to a leak test to confirm the integrity of all the weld seams. Lastly, each unit is computer balanced to reduce annoying and potentially damaging drivetrain vibrations that would occur from an unbalanced torque converter. That's Triple Tested so you can be confident you're getting a torque converter that's ready to roll.

 

Torque Converter Application Saturday Night Special® Breakaway® StreetFighter® Super StreetFighter™
1981-90 TH200C, 2004R, V6, 27-spline, 1.703" crank pilot 242600
242960 1

242500 2

243015

243016
2

243020
 
 
1 Non  lock-up converter
2 12" diameter converter
3 10" diameter converter with 12" diameter lock-up clutch assembly

Transmissions
TCI 381000 StreetFighter® 2004R transmission
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

Triple Tested

 

Alto Red Eagle®

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 before valve body installation
Each transmission is dyno tested to verify proper functions, pressures and cooler flow
Applications Engine Lock-up Non Lock-up
1981-90 2004R, 27-spline Chevy, Olds, Pontiac V8 381500 381060 2
1983-87 2004R, 27-spline 1 Buick turbo Regal V6 381000 381060 2
 
 

1 Will plug directly into OEM ECU
2 Requires non lock-up converter

2004R Transmission Valve Body
Description Part No.
2004R turbo Buick (BRF) calibrated 382200
2004R Full-Manual Series,1981& later, reverse shift pattern 386010

Service Kits and Valve Body Kits
Application Racing Overhaul Kit Master Racing Overhaul Kit Pro Super Kit Valve Body Performance Improver Kit Trans-Scat Valve Body Kit Racing Filter and Pan Gasket
1981& later 2004R, 27-spline 388600
389000
386800
N/A 386000
386500
 
 

Additional service items can be found here.

Heavy-Duty Flywheels and Flexplates - Click here

GM Overdrive Transmission Components

2004R/200C Clutch Plates
Application High Perf. Frictions Super Perf. Frictions
4th Gear 384010 (3 ea.) .080"
 
Direct   384006 (6 ea.).080"
Forward 384000 (4 ea.) .078"
 

TCI® 386005 2004R Billet Servo Assembly2004R Billet Servo Assembly

Greatly improves shift firmness while increasing torque holding capacity.

Performance transmission fans will feel the difference with the new TCI® 386005 2004R Billet Servo Assembly, which improves the shift firmness and feel of transmission shift points on Buick Regal Turbo, Monte Carlo SS and Turbo Trans Am vehicles. In addition to enhancing shift quality, the TCI® 2004R Billet Servo Assembly delivers better torque holding capacity for increased transmission durability.

The TCI® 2004R Billet Servo Assembly features increased application area (by 17 percent) over the largest Turbo Buick factory servo, greatly increasing the holding capacity of the intermediate band. Additionally, the included Teflon® seals return hydraulic integrity to high mileage transmission cases by eliminating pressure loss due to worn case bores. The innovative design of the TCI® 2004R Billet Servo Assembly prevents that annoying downshift "clunk" common with other aftermarket performance servo kits.

Application Part No.
2004R Billet Servo Assembly 386005
Replacement seal kit for 386005 2004R Servo 386006

TCI 385100 2004R Red Eagle PowerbandHigh Performance Hi-Energy Flex Bands
These Alto Red Eagle® Powerband™ bands are 18% wider than original equipment providing greater torque capacity and more positive 1-2 shifts. The anchor area on these bands is extra thick, heat treated, high-carbon steel construction to eliminate the stretching and breakage associated with stock bands.
Application Part No.
2004R/200C, All 385100

TCI 384500 2004R stator support2004R Heavy-Duty Stator Support
Original equipment stator supports on 2004R transmissions were woefully inadequate when it came to resisting spline wear. Even relatively low-mile transmissions will exhibit considerable wear. Our replacement, with its flame-hardened splines, solves this problem.
Application Part No.
2004R, All, flame-hardened splines 384500

TV Boost Valve for TH-700R4 & 2004R (0.500" diameter)
TCI 374301 .500" TV Boost Valve Replaces stock valve in all applications. The largest diameter OEM TV boost valve is only 0.471". After installation you will see pressure increase over all stock valves. Great for applications ranging from stock to 450 horsepower.

This valve may be coupled with the 0.400" diameter Low/Rev boost valve below for improved line pressure in the Manual First and Second ranges. This valve fit all 2004R & 700R4/4L60 (not 4L60E) transmissions. Easy to install with transmission in the vehicle.
Application Part No.
700R4 & 2004R 0.500" TV Boost Valve 374301

Mega-Pressure Boost Valves for 2004R/700R4

TCI 374401 & 374410 boost valve assembliesApplications exceeding 450 horsepower can definitely benefit from the increased clamping force generated by higher line pressures. Depending on what pressure regulator spring is used, these valve assemblies will generate maximum line pressures from 275-300 psi. across the board.

The 0.570" diameter boost valve has 41% more surface area than the largest OEM TV valve, raising pressure in Drive and Overdrive ranges. The 0.400" Low/Rev boost valve has a whopping 78% increase in surface area over the largest OEM counterpart! That'll bolster line pressure in the Manual First and Second ranges.

These valves fit all 2004R & 700R4/4L60 (not 4L60E) transmissions. Easy to install with transmission in the vehicle.

Description Part No.
700R4 & 2004R 0.570" diameter TV boost valve 374401
700R4 & 2004R 0.400" diameter low/rev boost valve 374410

Throttle Valve (TV) CableTCI 376800 universal TV cable
New design now has adjustable outer sheath! Truly, a universal replacement.

Description Part No.
700R4 & 2004R Universal TV Cable 376800

TV Cable Bracket
TCI 376700 TV Cable BracketTCI 376705 TV Cable Bracket

Description Part No.
700R4 & 2004R Carter® AFBT, QuadrajetT, Edelbrock® 376700
Edelbrock® carburetor TV Cable geometry corrector kit 376710
700R4 & 2004R Holley® carburetor 376705
Holley® carburetor TV Cable geometry corrector kit 376715


Universal Lock-up KitTCI 376600 Universal Lock-up Wiring Kit

Installation of this kit makes retrofits into non-ECM 700R4 or 2004R vehicles a snap. System allows automatic operation of the TCC in 4th gear under stable engine operation, and disengages the clutch when accelerating or down shifting. Also provided in the kit is a manual override option. Constructed from OEM connectors and oil resistant wire, we install this kit in all our complete 700R4 & 2004R StreetFighter® Transmissions.

Description Part No.
Lock-up Wiring Kit 376600
Replacement 2-wire TCC Solenoid for 2004R/700R4 376601

Severe Duty Transmission Crossmember MountTCI 952500 GM Transmission Mount
This quality crossmember mount is made from urethane and features a safety interlock between mounting points. A great addition for high horsepower applications that require maximum shock absorption. The urethane is impervious to grease, oil and road grime unlike stock rubber mounts. Kit comes complete with mount and high strength installation hardware. Note: Not a direct replacement for applications that use an offset mount.
Description Part No.
GM Application 952500

TCI 743860 Universal Filler TubeFiller Tube
The TCI® 743860 Universal Filler Tube fits TH200, TH350/400 & 2004R and includes all necessary installation hardware.

Description Part No.
GM Universal Filler Tube for TH-200, TH-350/400 & 2004R 743860

BRF/BQ 2004R Governor Spring
TCI 382205 BRF 2004R Governor SpringTurbo Buick owners recognize this spring. Not only does it have a propensity to jump out of your governor, it's unavailable from GM. Recognizing that it's a fairly common problem, we now offer a correct replacement spring for the factory BQ/BRF calibrated governors.

Description Part No.
BRF/BQ 2004R Governor Spring 382205

Technical Transmission Manual

Description Part No.
2004R tech manual, All 894100

Miscellaneous Items
Description Part No.
700R4 & 2004R Pressure Regulator Spring - makes up to 300 psi 374300
GM 2004R Bushing Kit 383700


NEW TCI shifter line Floor Shifters

TCI® offers a fine array of floor shifters for your 2004R equipped vehicle. From the street to strip, TCI®'s shifter line has got you covered.

 

 

 

GM Overdrive Transmissions
Transmission Dimensions A B C D E
2004R (Bellhousing fits-all) 27 11/16" 27 11/16" 27" 3 ¾" 19 1/8"
700R4 & 4L60E (1993-1995) (Bellhousing-Chevy V8); S-10 & S-15 V6, all ex. Corvette 30 ¾" 23 3/8" 22-1/2" 3 ¾" 20"
700R4 Corvette1 (1984-1996) 29 7/8" 23 3/8" 22 1/2" 3 ¾"" 20"
4L60E (1996-later w/ removable bellhousing) All except Corvette & LS1 30 ¾" 21 ¾" 23 3/16" 3 ¾" 18 ¼"
4L60E (1998-later w/ removable bellhousing) All LS1 31 5/32" 21 ¾" 23 19/32" 3 ¾" 18 ¼"
1 - TCI® offers a StreetFighter® transmission as a direct bolt-in replacement for the C4-platform Corvette OEM 700R4.  These units have a specific tailhousing assembly and a 1.125" shorter output shaft than a standard 700R4 transmission.  These units contain the same components provided in all StreetFighter® transmissions.
 
 
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