OK, I was told that for a lip seal protector kit for the CD4E the price of this kit from toolsource would be $110.00!!!!! This seal kit is made by ATEC tools in san antonio. Well I really have a hard time paying for something that I will only use once and that is made out of plastic that is $110. Someone is taking advantage of somebody and it is not me!!! So, I talked to a few people, one ole boy said that when he rebuilt transmissions for a living he used "piano wire" to seat the seals. This got me to thinking, I went out and purchased a sheet of medium gauge plastic. I cut this into a strip of 4 inches high by whatever circumference I needed for the piston. I then wrapped it around the piston and pushed the piston into the assembly.....and you know what happened it worked like a champ!!!! After it was seated, I just pulled the plastic out from the sides with no problem. I thought I'd pass this tip on to those that might want to rebuild their CD4e and come across this problem!!!!!
