Sonnax GM 200-4R Transmission

Internal

Bearing Kit SBK-G15

Fits '81-'89

Helps cure:

Bearing noise
Bearing failure

Thrust Bearing 65405

4L80-E/4L85-E: Fits OD planet/fwd drum; 200: Fits front internal gear-to-carrier

Bearing Style: Enclosed
Material: Hardened Steel
Outer Dia.: 2.351"
Thickness: 0.140"
Inner Dia.: 1.604"

Helps cure:

Bearing noise
Bearing failure

Pump

Bushing 77005T

Pump

Bushing Style: Precision
Material: Bimetal, PTFE-lined

Helps cure:

Worn pump bushing

Elevated Pressure Main Pressure Regulator Spring 77917-08

Helps cure:

Low base line pressure

Line Pressure Booster Kit 700R4-LB1

Oversized Pressure Regulator Valve 77917-06

Helps cure:

Erratic line pressure
Low line rise
Clutch slippage
Excess pump noise
3-4 Clutch failure

Tooling:

77917-TL
77917-TLC

Pump Slide Pivot Pin 65797

Helps cure:

Low line pressure
High line pressure

Pump Slide Spring 77722-01K

Replaces 2 OE springs

Pump Spring Spacer 77917-RV

Helps cure:

Erratic line pressure

Pump Vane 1280

Helps cure:

Lost or damaged component

Replacement Seal 77805-S-25

For TCC apply valve kits 77805-K and 77805E-K.

Material: PTFE

Helps cure:

Lost or damaged component

Reverse Boost Valve Kit K77898

Large Ratio, O-Ring Style

Helps cure:

Low Reverse boost
Delayed Reverse
Low line pressure
Poor upshift in manual low

Reverse Boost Valve Kit K77898A

Large Ratio, Factory Style, No O-Rings

Helps cure:

Low Reverse boost
Delayed Reverse
Low line pressure
Poor upshift in manual low

TCC Apply Valve Kit 77805-K

Fits non-PWM units only.

Helps cure:

No lockup
Falls out of lockup when hot
Fluid blown out fill tube
Lockup immediately after 2nd gear

TV Boost Valve Kit 77917-02K

.423" Bore Dia., Factory Style

Helps cure:

Soft slide shifts
3-4 Clutch burned
Reduced band life

TV Boost Valve Kit 77917-471

.471" Bore Dia., O-Ring Style

Helps cure:

Soft slide shifts
3-4 Clutch burned
Reduced band life

TV Boost Valve Kit 77917-500

.500" Bore Dia., O-Ring Style

Helps cure:

Soft slide shifts
3-4 Clutch burned
Reduced band life

TV Boost Valve Kit 77917-04K

.500" Bore Dia., Factory-Style Sleeve

Helps cure:

Soft slide shifts
3-4 Clutch burned
Reduced band life

TV Boost Valve Kit 77917-03K

.471" Bore Dia., Factory Style Sleeve

Helps cure:

Soft slide shifts
3-4 Clutch burned
Reduced band life

Valve Body (View Valve Body Layout Diagram)

Accumulator Valve Train Kit 77777M-K

Fits "M" version valve trains in heavy weight vehicles, .341" dia. In 4L60, fits '87-later auxiliary valve body styles only.

Helps cure:

1-2 Bang at light throttle
Reduced 2-4 band life

Accumulator Valve Train Kit 77777L-K

Fits "L" version valve trains in light/medium weight vehicles, .330" dia. Fits 4L60 '87-later auxiliary valve body styles only.

Helps cure:

1-2 Bang at light throttle
Reduced 2-4 band life

Checkball 10000-08

Material: Imidized Plastic
Dia.: 0.250"

Helps cure:

Lost or damaged component

TV Plunger Spring 77968-01K

Helps cure:

Low throttle pressure
Low line pressure

Case

Enhanced Performance Accumulator Spring 77704S

Pinless Accumulator Piston Kit 77998-03K

In 200-4R applications, this kit can only be used in the 3-4 accumulator location.

Helps cure:

Poor shift quality
Burnt clutches & bands

Replacement Seal Kit 77998-03SK

For 77998-03K

Helps cure:

Lost or damaged component

Servo/Band

Replacement Seal Kit 65703-SK

Replacement Servo Pin Kit 65703-14K

For use with K65703 & K65703-1 servos.

Helps cure:

Band failure
Worn cases

Super Hold Servo Kit K65703

Red-Anodized Cover

Super Hold Servo Kit K65703-1

Non-Anodized Cover

Other

Carburetor TV Linkage Corrector Kit AS4-04K

Fits Holley® aftermarket-style throttle arm.

Carburetor TV Linkage Corrector Kit AS5-05K

Fits Edelbrock®-style throttle arm

TV Cable Corrector Kit AS1-01K

Throttle Cable & TV Cable Bracket AS6-01

Fits Holley^® carburetors.

Tool Kit 77917-TL

Tool Kit 77917-TLC

Tech Resources

FEATURED

May 10, 2020

Valve Body Layout

GM 200-4R Valve Body Layout

October 19, 2021

GM 4L60 (700-R4), 4L60-E Accumulator Valve Codes — Deciphering the Alphabet Soup of Shift Feel

Maura Stafford

October 24, 2018

Clean Up Your Shifts with Sonnax Line Pressure Booster Kits

April 07, 2015

Drilling Orifices the Smart Way

January 01, 2013

200-4R TCC Apply on Top of 2nd Gear

Valve Body Xpress

May 19, 2006

GM

200-4R Transmission

Bearing Kit SBK-G15

Thrust Bearing 65405

Bushing 77005T

Elevated Pressure Main Pressure Regulator Spring 77917-08

Line Pressure Booster Kit 700R4-LB1

Oversized Pressure Regulator Valve 77917-06

Pump Slide Pivot Pin 65797

Pump Slide Spring 77722-01K

Pump Spring Spacer 77917-RV

Pump Vane 1280

Replacement Seal 77805-S-25

Reverse Boost Valve Kit K77898

Reverse Boost Valve Kit K77898A

TCC Apply Valve Kit 77805-K

TV Boost Valve Kit 77917-02K

TV Boost Valve Kit 77917-471

TV Boost Valve Kit 77917-500

TV Boost Valve Kit 77917-04K

TV Boost Valve Kit 77917-03K

Accumulator Valve Train Kit 77777M-K

Accumulator Valve Train Kit 77777L-K

Checkball 10000-08

TV Plunger Spring 77968-01K

Enhanced Performance Accumulator Spring 77704S

Pinless Accumulator Piston Kit 77998-03K

Replacement Seal Kit 77998-03SK

Replacement Seal Kit 65703-SK

Replacement Servo Pin Kit 65703-14K

Super Hold Servo Kit K65703

Super Hold Servo Kit K65703-1

Carburetor TV Linkage Corrector Kit AS4-04K

Carburetor TV Linkage Corrector Kit AS5-05K

TV Cable Corrector Kit AS1-01K

Throttle Cable & TV Cable Bracket AS6-01

Tool Kit 77917-TL

Tool Kit 77917-TLC

Tech Resources

FEATURED

Valve Body Layout

GM 200-4R Valve Body Layout

GM 4L60 (700-R4), 4L60-E Accumulator Valve Codes — Deciphering the Alphabet Soup of Shift Feel

Clean Up Your Shifts with Sonnax Line Pressure Booster Kits

Drilling Orifices the Smart Way

200-4R TCC Apply on Top of 2nd Gear

SonnaFlow® Chart: 200-4R (Normal & Poor)