So prior to intalling my shift kit I raised line pressues...Etc. using Hptuners. I just installed a transgo HD from Pro Built Automatics and afterwards set all the tranny parameters back to stock (except for lock-up speeds). Tranny shifts fine at Part Throttle but if I get on it, say above 4K, when it goes to shift it will let loose for half a second, RPMS will spike, and then it will shift smooth.

 

Have you talked to Pro-Built?

 

I PM'd him, just waiting on a response.

 

Typical trans go.

 

Which part is typical TransGo? The parts or the support? I purchased the transgo through pro-built which is why I am using him for support(he made modifications to the transgo kit)

 

Call him or you might be in for a long wait.

 

Give me a call, and I will walk you through this, as to how to solve this. Yes, this happens sometimes, but in the vast majority of cases, it can be solved from below. Call me later this afternoon, ok?

 

Thanks, I will give you a call later today. Crap, looks like I am taking the pan off again!