Yes, the ujoints were greased, and yes the shims were put under the leafs on the axle.
Did you have lock washers under your nuts on the straps? Could be they loosened and it fell out.
-Karl
2006 Chevy K3500 4X4 - No J.B. Weld on it yet!
1982 thru 94 F-Series "The Klogger" AKA Transport on the road, on the trail, or on the trailer!
1965 Chevelle
1975 Corvette