GM 2004R/200C
 | If you would like a
specific recommendation from a TCI® product specialist based on
your vehicle specs, click
here. |
|
Torque Converters
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. Regardless
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 3
 |
243020
 |
|
1 Non lock-up
converter
2 12" diameter converter
3 10" diameter converter with 12" diameter lock-up clutch
assembly
Transmissions
 | 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 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"
 |
|
|
2004R 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  |
|
High 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
 |
|
2004R
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)
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
Applications
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) Cable
New design now has adjustable
outer sheath! Truly, a universal replacement.
|
Description
|
Part No.
|
|
700R4
& 2004R Universal TV Cable |
376800  |
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 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 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
 |
Filler
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
Turbo 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  |
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. |
|
|