Re: What is this?
Found the website of the dealer, they are only asking $2999 cash for it now.
http://www.lowcostcarsoh.com/1985_GMC_GMC_197488768.veh#
It has a few more pictures. If only it were closer, it'd probably be worth the money to part out if nothing else.
Re: 4l80e input shaft Group Purchase
I'd take one at $500, that's close to the price of the last group purchase. I'm sure it would be useful down the road.