So a red letter day today. I fired up my 60 4x4 with 312 and noticed a small water pump leak. So I removed the fan and pulley and proceeded to re-tighten the water pump bolts and the upper right bolt broke at the threads. With the front motor mount attached to the timing cover I can’t remove the timing cover to get to the bolt in the block. Any advice is appreciated.

It occurs that what applies to the stainless available at big-box home stores (cheapest grade) likely also would apply to their base level zinc-plated steel.  So, I’ll use the grade 5.

6 VOLTS/POS. GRD. NW INDIANA