Originally Posted by the_experience03
I'm pretty sure that transmission was on borrowed time when it left the factory.
It's not like GM's 4L60E transmission (essentially equivalent) shares a much better reputation, but you don't often find it in a cab chassis.
Hey! I like my 4L60E! The one in my Trans Am take all the abuse I can throw at it haha.
I'd say the E4OD is more on the level of a 4L80E that a 4L60E. I can't imagine they installed any 4L60s in a van-chassis'd bus, I'm pretty sure any GM van over 3/4 ton got the 4L80 (maybe even 85?).
As far as a rebuild goes, I find it hard to believe my trans is original but I really have no way of telling. I was thinking about dropping a beefy C6 in when the **** hits the fan, but from what I hear an Allison AT545 will bolt up as well? Just gotta find one...
Mileage I guess is like 10? Not really sure. One of these days I'm planning on getting either a biodiesel processor, or converting the bus to run on pure waste veggie oil.