I have a 84 caddy with a 79 350 olds rocket motor
I just bought it an ran an shifted fine..then I took the 20" wheels off an put 15"
stock rally's on..ran fine for awhile but now won't shift into highway/4th
gear..could it be the TV cable or vacuum line to tranny?..or modulator?..
TCC?..i've read so many forums it seems like the possibilities are endless!!
HELP!!!