Re: NP 435 swap ??
I'm in the middle of swapping a 435 with bronco d20 into my YJ ..... sounds like you're going into a CJ? what engine etc?
basically, the swap info I have for a YJ 4.0:
need an np435, preferably out of a ford p/u. I got mine from an F350. i took the input shaft of the transfer case with me to check, you need the one with the 28 spline output shaft.
need T150 or T174 b/h, have it machined for crank position sensor, OR buy custom b/h
need special pilot bushing for amc/ford, AA has them
need iron duke clutch slave, mate it to stock clutch master AA has parts or find them used
need a bronco d20 transfer case, preferably from 6 cyl standard
need tranny/transfer case adapter, I'm making my own, AA and others sell them
have to custom make cross member and skid after, plus possible exhaust system re routing (haven't gotten that far yet)
As far as I can tell, you need custom speedo drive, although I'm still researching that - you can get a custom speedo drive, I'm just hoping to find a cheaper solution before I shell out the bucks.
almost certainly have to alter drive shafts.
Hope this helps.
Chad Lloyd 95 YJ 4.0 NP435 EBD20 woodies D44s 4.88 detroits SOA revolvers 35 X 15.5 SXs 8274