GM Performance Transmission Parts

GM 4T40E Transmission Accumulator Piston by Superior

GM 4T40E Upgraded Accumulator Piston This is a Superior Transmission Parts problem solver for GM's 4T40E transmission that replaces the commonly broken plastic piston. Superior Transmission Parts Number: K069

GM 4L60E 4L65E 4L70E Upgraded Front Pump Unbreakable Ring Kit by Superior

Heavy Duty GM 4L60E/4L65E/4L70E Unbreakable Pump Ring Kit Superior Solution The Sealed Power Nodular vane rings that will not break or bend during pump operation.  The double priming springs keep pump pressure stable and the Special pressure...

GM 700R4 200-4R Upgraded Front Pump Unbreakable Ring Kit by Superior

GM Heavy Duty 700R4 & 200-4R Transmission Unbreakable Ring Kit Upgraded Superior Solution The unbreakable sealed power nodular vane rings will not break or bend during pump operation.  The double priming springs keep the pump pressure stable,...

GM 4L60E Upgraded Pump PWM Power Valve & Spring by Superior

GM 4L60E Transmission PWM Power Valve Kit The 4L60E PWM Power Valve is designed to help supply more converter charge oil to the fill circuit when the units is in lock-up.  This valve does not change lock-up operation but does supply more oil to an...

GM 700R4 TH350 TH250 TH400 Governor Shift Point Package by Superior

Superior GM Shift Point Package GM 700R4 / TH400 / TH350 / TH350C / TH250 / TH250C This kit includes 6 weights and 6 springs to offer a wide range of adjustments.  The kit includes new weigh pins with E-clip ends for easy adjustment.  This...

GM 700R4 Transmission Hydraulic Lock-Up Package by Superior

GM 700R4 Transmission Valve Body Hydraulic Lock-Up Package The lock up valve and sleeve was used in the early valve bodies 1981 thru 1986.  The later 700R4 valve bodies, 1986 to 1989, kept the valve bore, but were non-functional.  1990 thru...

GM 700R4 Transmission Upgraded Up-Shift Sleeve by Superior

GM 700R4 Transmission Valve Body Up-Shift Sleeve The Superior Transmission Parts Up-Shift Sleeve will service all 700R4 transmission valve bodies manufactured from 1981 to 1993.  This sleeve allows full throttle 3-4 shifts.  The 4-3 detent will...

GM 200-4R Transmission Billet Super Servo by Superior

High Performance GM 200-4R Super Servo by Superior Transmission Parts  American Made BENEFITS OF SUPERIOR'S 200-4R SUPER SERVO 1.25% more apply surface area than the OE servo 2.11% more apply surface area than the GM Gran...

GM 4L80E Transmission Pump Conversion Kit by Superior

GM 4L80E Transmission Pump Conversion Kit Superior Problem Solver This kit allows the user to modify and install a 1997 to 2003 pump into a 2004 and up model 4L80E transmission.  Thus saving substantial money in having to purcase a late 2004-up...

GM 4L30E Valve Body TransLab Shift Kit Upgrade by Superior

4L30E TransLab Valve Body Upgrade Kit by Superior Transmission Parts Corrects or Prevents the Following Problems 2-3 Flare or Cutloose 3-2 Cutloose Coast Down Neutral Slam 2-3 Planet Failure Improves Overall Performance Helps Prevent Band Failure ...

GM 4L30E Low Band Super Servo by Superior

This GM 4L30E transmission low band Super Servo by Superior Transmission Parts resists wear in the pin bore better than the OE 4L30E servo.  It also gives the transmission increased forward engagement pressure which reduces band failure and...

GM 4L60E|4L65E|4L70E Pump Boost Valve & Sleeve (2005-UP)

This Superior boost valve replaces worn out O.E aluminum valves in GM 4L60E, 4L65E and 4L70E automatic transmissions from 2005 and up.  Made of hardened steel to resist wear these super solutions by Superior will stand what you can throw at it...

GM 700R4 TransAction Shift Kit by Fairbanks (1982-1993) Heavy Duty, Performance Street, Competition

Fairbanks GM 700R4 TransAction Shift Kit 1982-1993 General Motors Automatic Transmissions Offers 3-Levels of Performance Heavy Duty: Use for towing, off-road vehicles, campers, motor homes/RVs, trailers, and any other vehicle that does a lot of stopping...

GM TH350 TransAction Shift Kit (1969-1979) Heavy Duty, Street/Strip, Full Competition & Manual Control

Fairbanks Turbo TH350 TransAction Shift Kit 1969-1979 GM TH350 Automatic Transmissions Offers 4-Levels of Performance Heavy Duty: Use for towing, off-road vehicles, campers, motor homes/RVs, trailers, and any other vehicle that does a lot of stopping...

700R4|4L60E|4L65E|4L70E Bushing Kit (1982-UP) Dura-Bond

Dura-Bond Bearing Company is a leader in camshaft bearings, powder metal valve seats, valve spring shims and engine hardware design and manufacturing for over 60 years.  All Dura-Bond bushings are American made! Some Dura-Bond kits are not...

GM 4L60E|4L65E Upgraded HD Steel Pump Boost Valve by Superior (1993-2004)

4L60E 4L65E 4L70E HD Steel Boost Valve & Sleeve by Superior Transmission Parts 1993-2004 This part repalces worn out OE aluminum valves and is made of hardened steel to resist wear.  Proper tolerance is assure at bore and mating surfaces...

GM 700R4 Shift Correction Package by Superior (1982-UP)

High Performance 700R4 Shift Correction Kit This GM 700R4 transmission Shift Correction Kit, by Superior Transmission Parts, contains an anti-stick throttle spring and deals with the weak 3-4 clutch problems in a very effective manner.  The feed to...

GM TH350 Shift Correction Package w/ Separator Plate by Superior

High Performance Turbo 350 Shift Correction Kit w/ Upgraded Separator Plate This TH350 Shift Correction Package offers regular,  heavy duty and towing applications all in one package.  This valve body kit services TH350 and TH250 lock up and...

GM 4L60E|4L65E|4L70E Forward Accumulator Piston Piston Pin Kit by Superior

4L60E/4L65E/4L70E Transmission Forward Accumulator Pin Includes 3-Pins & 1-Drill Bit This 4L60E Problem Solver, by Superior Transmission Parts, repairs and seals a loose or worn OE pin and bore.  No modifications to the valve body are needed...

GM 4L60E|4L65E|4L70E 3-2 Downshift Valve Spring & Valve Stop by Superior

HD 4L60E/4L65E/4L70E 3-2 Downshift Valve Spring and Valve Stop by Superior Transmission Parts 1996-UP This aftermarket upgraded replacement spring and valve stop works with 4L60E 1996 and up transmissions.  The OE spring may be found broken upon...