Hey All.....

I have tried Researching this issue, but I am Not finding Anything With my Same Exact symtoms...

Lil Background.... I had this Trans rebuilt in Nov 2012.....Guy did a Super job on it....He builds Comp trans For Mud racing and Truck pulls....

That Said, I have about 280k on the Rebuild.....mostly Towing Miles....Never Hot, always Religious about Fluid changes every 30k or less if HEAVY towing was Done....

The other Day With no Warning at all I pulled up to a Light. When I went to take off under normal throttle...The truck started to Move, then POP....nothing...revs but no forward go.....

I dropped it into Low gear and it shuddered and Creaped at idle....I let it idle up to around 7-8 mph and Then gave light throttle...had power, shifted up into Drive , had good Solid power locked up and Allowed me to drive to Service station about 1 mile down the Road....Checked fluids all was Well.....Reverse Feels Very Solid Still....
Put it in drive Nothing, drop to Low gear it shudders and Moves so I Limped it home that way....

I dropped the pan, its clean inside...mag is pretty clean too......I had the Gov Solenoid Replaced 2 yrs ago due to failure there.....So I bought Gov Solenoid and Gov Pressure Sensor and Installed them today ..... Still Same issue....Reverse very Solid....Forward No Go unless I drop into Low and Idle out into it....??

I am Looking for Transmission GOD advice....I use this Truck Daily, and Having it down Kills ME.....

Thanks in Advance,
John in Oregon.