When i am running on the highway @ 45-60 mph with my edge att. box on 1 or 2, (do not have VP pump tapped) and push the pedal down even slightly it seams as if the trans or T/C is slipping. It feels exactly like a clutch slipping in a Manual Trans. mabe not as violent. does not do this running on stock level. T/C was replaced by local Cottman shop w/ what ever brand they carry, was suppost to be HD good for 800ft/lbs torque. Is this a T/C lock-unlock eletcrical issue???

Got any error codes? :confused: Its a good possibly that its a TQ Conv locking issue...

if its not a lock/unlock problem, you need a torque converter. I recommend Goerend, but there are others.Ops