I.S.S would only be 2007 and up!Up to 2005 you could change quickly. But I read somewhere about because of a input speed sensor you had to pull tranny to change valve. I don't understand why?.
Did your servo kit come with all new seals? I replaced the servo as my first transmission mod, and did not experience this issue. My servo kit came with all new seals though. How many miles are on your trans? Have you changed to a larger tire size from stock, and if so how long have you been running them?I changed the servos and it test drove great for a while. Now I'm getting some slipping between the lower gears. Scratching my head. Anyone had this to happen after servo mid?
Id like to do the 5 speed swap once the auto starts to go maybe.What is the propose for replacement? Failing part or performance gain?
Dropping a 4L60e out of your truck is involved and even more of a pain in the ass to get back in.
I just swapped my truck from a 4L60e to a MA5 (aka 5 spd). If you need further explanation let me know.....I can go into the bloody details.