I plan on building a trans for my 2004 Silverado and was wondering if there was a dfference between model years of the 4L60E's. From what I found parts are pretty much the same from 1993 and up. Just wanted to make sure.

 

How far are you willing to go to build it?? Here is what I just did. Keep in mind, the core I had had a low/reverse failure so theres parts in this I had to replace, I.E low/reverse clutches/steels, rear carrier and ring gear, sun gear, spring roller, you get the idea......there is also mods you can make to the case during the rebuild as well.

Corvette intermediate servo
Billet overdrive servo
Double cage 29 element forward sprag
Low/Reverse spring roller
Alto red low/reverse clutches and Koleen steels
Alto carbon oversized 2/4 power band w/ reinforced anchor
New reverse input drum/housing
Rebestos blue 3/4 clutches and Koleen steels
Rebestos blue overrun clutches and Koleen steels
Beast reaction shell
New reaction sun gear
GM rear 5 planetary gear set
Rear carrier ring gear
Thrust bearing kit
Sonnax boost valve
Billet forward accumulator
Billet 1-2 accumulator
EPC Solenoid
Superier valve body shift correction kit
4L65-E overhaul kit(gaskets,seals, ect)
Updated valve body seperator plate
Billet 300mm output shaft
Billet 300 mm input shaft
Billet input drum sleeve & piston
RPM high-rev spring kit
Longer servo pin then grind tip for clearance

 

I am planning to pretty much go all the way ith it. I was crunching some numbers and for what I want to do with it, I can save some money just doing it myself. I've already built a couple 700r4's.

 

All the parts aren't the same, make sure you do all the 4l65e upgrades. Mainly the 5 pinion planetaries.