This is the second problem I have had with the built tranny in 10 months that I had it built. First time it was slippin from the 1-2 shift...guy said it broke a band. Well today, It happened really fast, I went to start out from a light and I could feel the tranny shutter and hesitate and slip a little. Next light it slipped up to about 3000 and by the 5th light it was slippin so bad it wouldnt even go and just barely crawled it off to the side of the road. I think it was slippin in all the gears, but I didnt want to layinto it and find out, because just crawling it from a start it was bad. Does this sound bad..could it be the converter, what do you guys think. This happened 3 weeks after my lq9 swap by the way. Its sittin on the side of the road waiting to be towed as I speak

I had something like that happen....sounds like you might have lost hydraulic pressure, maybe something like clutch material shaved off and plugged up some of the fluid channels. That's what happened to me - in my case it was a bad clutch in the converter that decided to take a trip through the rest of the tranny.

Hey, one of mine did that too. In my case, I fried all the clutch packs, a band or something, and put hot spots somewhere else. IT wasnt good. Hopefully your situation is better than mine was.

i am glad my truck doesnt have to power to break ****. this crap is getting expensive.

Hell my stock tranny never broke in the 4.8 with the 100 shot of nitrous that I ran for a year. I switch to the built one and broke it once with the 4.8 and now again 3 weeks after the lq9 swap. technically it still has 2 months on the warranty, but Im done with that builder. I will just get it rebuilt here locally and take it easy until I can afford a level 5 FLT or an 80e.