[west9378]

I did not look at the start date on this thread, so I started off my post by saying

Perfect timing for the thread, my 71 K20 is at the shop for an LS and 6L90 swap from a donor 2008.
I purchased cross member from Dingo Motor Sports and the adapter from advance adapters for the transmission to transfer match.

Dingo Motorsports 1967-72 4x4 LS Conversion Cross Member/ Clam Shell / Adjustable / Black DD-LS-CM1 $454.97
Dingo Motorsports 1967-72 4x4 LS1 - LS7 1 3/4" Long Tube Headers DD-64-1302LS1 $329.95

Advance Adapters GM 6L80 / 6l90 6 Speed Automatic to GM NP205 Transfer Case 50-9551AB $762.15

I hope this is helpful,