Hi there, first of all let me introduce myself, my name is Antonio and im from cd. juarez Mexico, i have a 91 RS Camaro and i went from 305 to 350 engine, mostly stock, I have a problem that its driving my nuts...

For the past 3 or 4 months, my trans is doing very very hard shifting.
from 1st to 2nd in about 3200 RPM, from 2nd to 3rd like 4000 RPM

I already changed the torque converter, speed sensor, oil pum, the governator, tv cable, valve body, and last week i took it to a rebuilt, still have the same problem, i also tried to drive it in manual but the gears dont soft down...

Can anybody help me? i'm out of ideas

Thanks for your inputs

(Pardon my English)

 

Most likely the previous owner put a shift kit in it there for it will shift hard it is supposed too. My 90 IROC chirps the tire when it shifts into 2nd and 3rd. Don't think you have anything to worry about.