I don't mind swapping my valve body and channel plate (if necessary). I would probably need a separator plate if these trannys are as hard on the plates as a 4l60 is. But I don't want to reuse my pump because it has seen better days. I found a reman delco pump for 160 but that's how much the entire trans will cost from the yard. Any idea if the newer pump would work on the older valve body/channel plate?