Worked on a 57 Ford with factory 312 Yblock that had a GM Cavalier center steer r&p, GM alternator, GM p/s pump, and Ford crank pulley and w/p. Each pulley was the double V belt groove type so each component had some leeway in the forward-back mounting. We have been switching to single plane serpentine for so long I'd forgot how hard the V belt pulleys, in several planes, are to get aligned exactly right. I think my thinking in 3D has left the theater.

[img]https://i.postimg.cc/hX3hsRfm/IMG-5088.jpg[/img]

Evan