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OUR YEARS OF RESEARCH AND DEVELOPMENT HAVE RESULTED IN THE MOST EFFICIENT VALVE BODIES AVAILABLE ANYWHERE FOR THE GM TH400 TRANSMISSIONS.

GMTH400 VALVE BODIES

"PRO TREE" TRANSMISSION BRAKE                                       #4VB/TB $389.00

This is the most unique valve body of its kind.This the fastest shifting and releasing transbrake valve body available in the aftermarket including all aluminum types.Our transmission brake applies and releases instantly due to our unique splitting of the third and reverse apply circuits with a secondary spring loaded spool valve in the valve body .This valve body also eliminates the long stock third gear circuit and incorporates its own that requires less than 2 cubic inches of oil between the manual valve and the new direct clutch apply passage in the case.This new circuit produces the fastest 2/3 shift ever available on a TH400 transmission.This valve body cannot be accidentally applied in 2nd or 3rd gear.It also includes a special check ball controlled circuit(Thanks Joel) that safely unloads the rear band on launch.This valve body is guaranteed to improve your reaction times.

HEAVY DUTY/TOWING                                                         #4VB/HDT1 $149.00

Custom valve body assembly for heavy duty and towing applications.Includes adjustable vacuum modulator,rebuilt governer,gaskets and instructions.

HEAVY DUTY/TOWING DIESEL/TURBO/SUPERCHARGED   #4VB/HDT2 $249.00

Custom valve body assembly with heavy duty and towing calibration for diesel, turbocharged or supercharged applications which require a mechanical vacuum modulator for proper transmission operation.Complete with mechanical modulator assembly.

STREET/STRIP                                                                        #4VB/SS1 $149.00
Custom valve body assembly for street and strip applications.Includes adjustable vacuum modulator,rebuilt governer,gaskets and instructions.

STREET/STRIP TURBO/SUPERCHARGED                              #4VB/SS2 $229.00
Custom valve body assembly with street and stripcalibration for turbocharged or supercharged applications which require a mechanical vacuum modulator for proper transmission operation.Complete with mechanical modulator assembly.

STREET/STRIP FORWARD PATTERN FULL MANUAL        #4VB/FPFM1 $149.00
Street and strip competition type forward pattern full manual valve body with a vacuum modulator to provide vacuum indexed line pressure control based on engine load.This is to be used in vehicles that are street driven .The functioning  vacuum modulator will soften the engagement of reverse and drive from the park positionas well as provide a throttle sensitive pressure control system.The system improves durability by reducing pump gear wear,seal ring wear and converter ballooning caused by high line pressure.Please specify with or without engine braking.

STREET/STRIP FORWARD PATTERN FULL MANUAL TURBO/SUPERCHARGER
                                                                                           #4VB/FPFM2 $249.00
Street and strip competition type forward pattern full manual valve body for diesel, turbocharged or supercharged applications which require a mechanical vacuum modulator for proper transmission operation.This is to be used in vehicles that are street driven .The functioning mechanical modulator will soften the engagement of reverse and drive from the park positionas well as provide a throttle sensitive pressure control system.The system improves durability by reducing pump gear wear,seal ring wear and converter ballooning caused by high line pressure.Please specify with or without engine braking.Please specify with or without engine braking.

COMPETITION FORWARD PATTERN FULL MANUAL          #4VB/FPFM3$149.00 Competition type forward pattern full manual valve body with fixed line pressure.Please specify with or without engine braking .

COMPETITION REVERSE PATTERN FULL MANUAL           #4VB/RPFM1$149.00

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