Th400 Swap Parts

Next Gen Custom driveshafts have been used in PowerGlide and Th400 applications and has provided it for our kits for many years and now we are making it available for everyone. Simply select the options above that match your application and add to cart...

3-Speed Reverse Pattern TH400 ShifterIncludes shifter, 5-ft cable, shift arm, pan bracket, neutral safety switch, CO2 activation cylinder*, and flat floor mount.* CO2 tank not included

3-Speed Safe Neutral TH400 ShifterIncludes shifter, 5-ft cable, shift arm, pan bracket, neutral safety switch, CO2 activation cylinder*, and flat floor mount.* CO2 tank not included

New JPC Racing 8 Bolt modular Flexplate  Billet Steel Pilot Adapter mated to Flexplate Big Chevy and Small Chevy converter bolt pattern Comes with specific flexplate bolts Torque to 70 ft lbs. with red loctite      Free Shipping only for The 48...

Stage 3 TH400 Transmission Swap Package | 1400HP Rated | Built by Proformance Racing Transmissions Take the guesswork out of your transmission swap. At Next Gen Performance Center, we’ve streamlined the process with years of real-world installation...

1 Gallon Jug   Perfect For Powerglide, TH400, C4, 4R70, and 727 Torqueflite Transmissions.    Boost Guard High Performance Transmission Fluid is a single grade lubricant blended from quality virgin base oils and a high performance additive...