Shift Kits

TH350 Stick Shift HD Reprogramming Kit (1969-1981)

Reprogramming Kit™Manual Shift ControlFits 350 1969-81Does not fit lockup transmissions Features: Stick shift; competition, off road and pro-street Converts back to automatic Increased line pressure for firm up-shifts

TH350C HD Reprogramming Kit (1981-UP)

Reprogramming Kit™with Gear Command™Fits 350C only 1981-91Does not fit 250C Features: Automatic shift; street or full race Holds 1st, 2nd to any RPM Backshifts to 2nd and 1st at any RPM Tow&Go™ or competition

TH350 HD Reprogramming Kit (1969-1981)

Reprogramming Kit™With Gear Command™Fits 350 1969-81Does not fit lockup transmissions Features: Automatic shift; street or full race Holds 1st, 2nd to any RPM Backshift to 2nd and 1st at any RPM Tow&Go™ or competition

TH350 Shift Kit by TransGo

SHIFT KIT® Valve Body Repair KitFits all 250/250C, 350/350C 1969-onFits lockup and non-lockup Corrects/Prevents/Reduces: Falls out of high when hot 3rd clutch failure Soft, late shifts Cross leaks

GM TH350 Transmission High Performance Shift Kit by Superior

GM Turbo 350 Transmission Shift Correction Package  A Superior Shift Technology Product This high performance version of the TH350 kit is offered for street rods and racing only! The high performance valve body kit allows manual low up shifting...

GM TH350 Transmission Shift Correction Kit by Superior

GM Turbo 350 Transmission Shift Correction Package  A Superior Shift Technology Product This TH350 Shift Correction Package offers regular, heavy duty and towing applications all in one package.  This valve body kit services TH350 and TH250...

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...

GM TH350 Posi Shift Kit by Fairbanks (1969-1979) Heavy Duty & Street/Strip

High Performance Turbo 350 Posi Shift 2 Stage Kit 1969-1979 Models Heavy Duty & Street/Strip Applications Step Up Your TH350 Without Removing Your Transmission!   WHY USE THIS TH350 POSI SHIFT KIT Firms up 1-2 and 2-3 shifts Includes...