i put in the manual valve body for the 700 and the trans worked great for a couple weeks and one day on the parkway i lost 4th and then 2nd and then reverse whats the deal i read somewhere the sun shell maybe or what its on a low thirteen second 305 with a 125 shot i know nitrous beats the sh*t out of the trans cuz of the hit but it was on motor when all this happened just cruisin any info would help is the trans rebuildable or do i have to take out the valve body and swap into another trans

 

This is just my opinion but I would skip the manual VB. How was the tranny before it was installed?

I would go with a proper build along with the TransGo peices to keep it alive.