wondering what are the stock torque and hp rating are for the tran 5-speed and rear diff and what would be the best way to make them stronger ir haf shaft better gearing.

 

Don't think there is a "rating".. stock diff and tranny can break at stock engine torque if you apply enough shock to it.. drag racing on slicks, wheel hop.. etc.

Stock tranny and diff are pretty strong, and hold up fine on high powered cars.. well unless your drag racing then they just break.

What exactly are you trying to do with the car? Perhaps that will yield better responses.

 

Not quite sure yet I bought the car not looking for it, I have to finish a 67 Camaro first but I also want a car that can take a corner so when I saw a deal I grabbed it I am just trying to feel out what other people have done and no one talk to much about the tran and IRS. I have all ways have done big torque American super charged cars and the running gear is my first concern you can have a tran and diff that is too big for the motor and every thing is fine but you can't have too big a motor and stock running gear so the motor is normally my last concern. So I am learning the turbo rpm rotary ecu thing with a 93 rx7 so before I grab a wrench with this one I am trying to learn as much as possible any help I appreciated and yes I am making it threw the newbi pages