tranny problem

[BigRed2]

I just had my trans rebuilt(4r100), put in a Transgo tugger kit,billet low stall triple disc converter,and synthetic fluid, anyhow the trans was working great shifting real nice, today I was going down the road about 30mph and stepped on the throttle to speed up, it downshifted fine, got up to about 40 upshifted fine then I let up on the throttle a little went to go again and nothing, like it was in neutral. Coasted into a parking lot, no drive no reverse, fluid is full,red not burnt,no bangs ,no clunks no noises what so ever no leaks anywhere, od light did not flash going to check for codes tomorrow. Sorry it's so long winded,anybody have any ideas-Thanx John

[paulgl26]

get it back to the shop
it did the same to me yesterday
i had to turn engine off and on a couple of times to limp home
called the shop and they said that if that happened it is shot