Crossmember for DSE Sub and Holley specific parts?

[69C40Hx]

Originally Posted by 130fe

Update-

I was able to go work in the car on Thursday. Fitting everything together as I had it, the driveline angle was approx 5.2 degrees down. That included the Holley supplied spacer (for the magnum). We started raising (and mocking in different spacers) the trans level. Ended up going to the local hardware store and bought a 1” square block of aluminum. Thanks Scott D'Alessandro!
We installed(mocked it in) that spacer and it was right at 3 degrees, closer to where I wanted to be. The contact area on the case I was concerned about is no longer a factor.

Obviously the block will have to be drilled and the mount studs will be swapped for longer bolts.

I plan on trying to raise the trans level a bit more, I know the 3 is good, I really want closer to 2 degrees. I will update more once it is in the car. The trans tunnel will have to be cut/raised. The subframe holes will also need to modified to match the new crossmember location.

my friend has almost your identical set-up (DSE sub, 060404 mounts, LSA engine, Quicktime bellhousing, T56 Magnum-F) and used the Holley trans crossmember (71222017HKR) meant for the "LT" generation engine swap and it worked fine with no tran tunnel cutting/mods.

what exactly is hitting on your set-up? not sure what my friend did differently but it all seems to fit (albeit very tightly). he does have DSE aluminum body mounts but they're stock height.