Let me start over here.
1st off, This is my first post, been a long time reader and learned a lot from other guys on this forum.
I bought a c-4 (pan fill) several years ago off a guy on the net. I have been running it behind a 460 running 10.50s at 128 in a 3000lb fox body capri that is street driven (aprox 200 miles per year). Last time I had it to the track it lost 3 mph at the same rpm I was crossing at before in the 1/4 so I figured it was slipping in 3rd and decided to pull it apart and see what parts were in the trans and what was causing it to slow down. I was told it had a trans brake in it, and it does have a solenoid on the outside of the trans, in the same place as the factory vacume mod goes. But I never tried the brake. I figured it had some sort of aftermarket valvebody in it, but it has ford part numbers on the top and bottom of the valve body. My first question is, does anybody make a transbrake that uses a modified ford valve body? I was very disappointed when I pulled the body out and did not see JW. or TCI stamped on it somewhere.
Besides that the only problems I have seen was the high clutches and steels had burn marks on them and the flex band that holds them was burnt. Also several thrust washers had severe wear on them.
This is my first transmission rebuild, but I have read a couple of books and a bunch of post on several websites, the c-4 does not look to complicated to rebuild.