help transmission trouble blew ut 2 in 2 weeks

[riviera]

I have an 87 gn with 42lb injectors with a percision t63-1 turbo and front mounted intercooler with a 3200 ati stalli had the stall fresen up with new bearing etc. Put new rebuilt tranny in it blew up within in a day it won't come out of 3rd gear so took it to tranny shop rebuilt it same thing and same time frame. My question is an I making too much power for my tranny or could there be a problem in my converter or something else another sop suggested I go to a transmission turbo 350 or a turbo 400. Need some input and good advice

 

[1KWIKSIX]

What Tranny shop did the repair / rebuild?

 

[6cylboost]

what are doing, neutral drops?

 

[riviera]

@6cylboost I wish I was doing neutral drops then I would understand yb it was blowing up normal driving no wide open trottle

 

[TurboBob]

I had a shop try to build one for me, they tried twice and never got it right. They tried to cover their inability by telling me that the stock transmission could never hold the power I wanted to make and I should put in a 350.

The solution to the problem was to find another trans shop.

The shop I found built a great trans for me which held up for 5+ years in a 10 second GN, and was still working great when I sold the car.

You need to find another shop.

Bob

 

[V6RACER]

Unless you are running 9s, I would keep the 200 and find a good TR transmission person to deal with.