I heated the cross pin retaining bolt to soften the thread lock to hopefully remove it without any issues. I have heard of crummy stuff happening with this bolt shearing off. Five minutes of heat, and a 5/16" 1/4" drive six point socket, and it came right out, no problems at all.
Planning on pulling axles and replacing the axle seals, and replacing the backing plates. They are not leaking, but figured while I had the axles out, I might as well. I removed the rearend from an Explorer that didn't have rear wheels, and was dragged across the junkyard, messing up the bottoms of the rear backing plates. I will check the traction lock and see if the plates need replaced or not. Fluid looked fairly clean. 3/8" square drive removed the drain plug, and 12mm removed the rear cover bolts.
Planning to go carbed initially on the 5.3 to keep things simple and look more vintage. May go fuel injected later, but we will see. I saw a LS engine with the Holley coil covers at Des Moines Good Guys show this summer that is pretty much exactly how mine will be dressed up.
Initially used the stock "clam shell" engine mounts, but later changed to the stock small block engine mounts and Chevelle "tall and narrow" frame stands to get the engine to sit down into the crossmember area better. I am using the Camaro oil pan and exhaust manifolds.