Hi all, Need some ideas here. Got truck running great, but now that other things are quiet can hear a fanbelt squeal at 2200 rpm and higher. Replacement engine is a 1978 292, water pump shows up as 65 to 74 for a 292, alternator is a new 10si with the pulley from what I think was an old 10si when I got the truck. Belt upon delivery unreadable junk. Now on 2nd replacement belt using a dayco topcog 15370 11a0940. I've checked pulley alignment and they're darn close if not dead on, adjusted to less than 1/8" flex from pump to alternator span. Fan belt does not ride to bottom of pulley grooves as they are really deep and narrow. Suggestions????
