I have an sm420 trans, used chev pressure plate that matched eng, donor and disc from 60s era trans to match input spline. Mounted standard 1500 chev PU slave cyl with fabbed bracket. Used same location of trans and transfer case as front and aft spacing of eng. worked well, no changes to drivelines, already had SYE. Exhaust interfered with slave cyl so used manifold from full size van for more forward dump, then routed front of oilpan to pass side. Custom header may be in future as driveline still rubs, will consult exhaust professional before going furthur with exhaust. Lincoln electric fan.
By the way where did you get your ECM reprogrammed?
So I made some progress today and got the engine temporarily in and motor mounts welded in. Now i noticed the I was off by an 1/8" from front to drivers side motor mount. Do you think that will matter at all?
I have put lots of engines where they don't belong. Being off by an 1/8" up front can be a good thing at the transfer case / pinion shaft alignment. Check it and see where your at, you may be pleased. I will be reading this daily, it is the swap I am considering for a newly acquired YJ. By the way your engine / tranny combo looks real good...Real Good!! I have heard yellow engines create 10 more ponys than any other color !!