Hey Mike I have a tranny problem. First time truck was downshifting from 2nd to first and it felt like the trailer brakes locked up. Turned the truck off worked fine for 2 weeks 25 mile trips. Next time I drove it 50 miles samething in the same spot. Truck was down shifting from 2nd to first. Feels like the trailer breaks lock up. This time shut it off. Take off and within 3 blocks same thing. Limped it home. Took it to the local shop solenoid b shorted and p0776. The fluid looked clean but metallic colors. They change solenoid b now on the test drive they say when it shifts into 4th it goes into limp. The tranny had 50000 miles on it since it was rebuilt with a sun coast. Mainly running about 500 horse tow tune pulling trailers but don't run the piss out of it.
