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Transmission lost 3rd and 4th gears so I pulled it and found the direct drum burnt up, got new drum and changed all seals, clutches, steel plates, aftermarket cooler and put a sure cure kit in it.
Truck drove great until it blew the front seal out 250 miles later, took it to a shop since I was away from home and he said the clutches got hot so he completely rebuilt it. Truck made it 150 miles and lost 3rd and 4th again. He replaced all the solenoids also.
Transmission shop rebuilt it again and it made it 80 miles and now it will not move at all. We replaced the neutral switch, shift cable, and shifter handle on the last rebuild because he thought it was hanging between neutral and drive.
What else could be making this transmission keep going out? Could it be a bad case, bad valve body or what? We are at a total loss on what keeps burning it up, any help would be greatly appreciated.
You getting any codes? Or just hard failure. You replacement cooler big enough? You eliminate the factory cooler. ....trash could still be in the system.
No codes, the truck will just bog down then loses either 3 and 4th gear or like this last time all gears. The shop is leaning toward a cracked case and is wanting to get a core and rebuild it, I just want to make sure it's not something else like a computer causing it