" From: Tom Jennings <tomj@xxxxxxx> " The 1983 258 P.S. pump, well you'd think it was some buckin' " bronco the way it's bolted down (on the drivers side). About six " puzzle pieces have it bolted to the block, intake manifold, water " pump, and head via a cast aluminum bracket.
isn't serp belt tension quite a bit higher than v belt tension? and didn't they start using serp belts [on ca. cars] about then?
Could be related, I have no data. 83 is the last? v-belt arrangement, which is what I wanted. Serpentine didn't solve any problems I had.