JC Transmission

09/10/2026

My 4l60 builds get a fresh pump and if wanted I can add a boost valve w/ line rise. This unit is going in a 2005 Silverado. It’s getting a corvette servo, valve body and much more. We are looking to clean up that 1-2 shift, with these parts and some tuning it’s gonna feel nice.

09/09/2026

If you have a 2010 and up gm truck/suv and don’t want to be rebuilding it before 120k I would recommend this kit and a tune at the least. We offer tuning that will make your transmission last! The factory tuning is the reason these transmissions go bad.

09/02/2026