I think the general consensus is to keep the silence shafts if you want to keep all your fillings. it'll all depend on how the bearings are in the block.

Love the raider, hate the raider, love the raider,.....
new: '88 Montero, auto, LSD 2.6L
'87 Raider, 2.6L(#2), 5spd, Dual batt., Xterra roofrack......soon off to the wreckers