I can agree with this. I have been building and rebuilding the ever crappy GM 4L60E transmission for my '86 Silverado. It's not hard to do at all, but knowing the tricks of the trade to make is stronger and more reliable is the key. The difference between pricing may be (or more than likely is) the components that go into these units. I am friends with a professional transmission builder out of Chicago, and I can tell you that to make ATs as strong as an MT (5 or 6 speed), there's some work to put in to building 'em.So, depending on what's in 'em from the factory may very well have something to do with pricing... that and dealership "smoke & mirrors".
