next is a 700r4 install

[Pont406]

My 69 c10 now has a rebuilt front end, front disc brakes, locker and 5 lug wheels with new tires. I did a few th350 and 400 rebuilts before but this is my first 700r4 rebuilt. It's a 1990 model with all updates and a good 732 pump. Everything looks good but 3-4 clutch pack is smoked. I'll be ordering a heavy duty rebuilt kit soon. Before I put it back together I need to find what was a reason for a burned clutch pack. Any ideas? Thanks