So all back together with new alternator belt set, bypassing the York A/C pump I pulled off, and works great.
Belt I borrowed from my CJ5 was too narrow and rode down in the alternator pulley so far it could not grip properly, and near burned up the alternator, with only a minute or so run time.
Had to helicoil the bolt hole on the block for the alternator swivel, and with that solid and tight makes a huge difference, in how solid the alternator is now vs before.
New belts are a generic industrial size, and just a tad wide @ 1/2", but the two together work well and no slipping.
Going to run errands this afternoon with just water still in radiator, and if it does good will drain tomorrow morning, then add back full strength anti freeze to mix with water from the block. Should come out about 50/50 when all mixed together, and should run cooler than road test will show with just water.
'81 CJ5 Base, 258 I6, MC2100, T176 4 spd, 300 TC, D30 Front NT, 3.31, 2-Piece AMC 20 rear NT, 3.31, 4" high arc spring lift
'84 Grand Wagoneer, 401 V8 (.030 over), MC2150 HA Comp, 727 auto, Selec-trac NP229, AMC 20 REAR - D44 FRONT - WT 3.31, 4" high arc spring lift
Rather be driving, than waiting to be modified