Originally Posted by John_Kunkel
Once again, are you saying it upshifts 1-2 at 15 mph with WOT or light throttle? If light throttle, try completely disconnecting the TP linkage at the trans lever and push the lever full forward. If it shifts early with the linkage disconnected the problem is in the linkage setup.


With ANY throttle. The pinion snubber is getting a workout lol