I think the problem you would run into with tilting engine/trans to remove the C6 housing is that lower crossmember. It still might not clear that and you would be approaching an angle where the rear of the engine contacts the lift structure to even clear the upper crossmember….
Langstonhs pics tell the tale quite clearly. The Main-shaft protrudes 2-1/2 inches out the back of the transfer housing. The splined collar of the C6 clutch-pack carrier protrudes forward of the clutch housing at least 1-1/2” so you could need nearly 5” of clearance. As it stands there is about 2-3/8” of clearance between the C6 housing and the subframe/upper Crossmember. if it could be moved to the rear 3” or the center of it removed you could get the C6 assembly off of there…
The transfer case needs to move to the rear at least 10” to clear that center shaft. Not something I would want to do with a tilted assembly and a #500 transfer case. Now if those two crossmembers were removed, I think it would be very doable. If you left the ends of the upper subframe crossmember as tabs, it could be converted to a bolt-in(Next larger size of channel to slip over and interlock with the stubs lect behind) and Since the lower is already a bolt-in, it might could be converted to a 2 piece bolt-in…
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