BTW-The Mack's Delco 17SI alternator turned out to be toast,so it now runs a 140 amp Leese Neville unit;it's a one wire,and required a special 2 groove pulley to work with the stock Mack belts,and works GREAT! thumbs_up Nice bright lights at any speed down to 350 RPM's.
I'm now working on a bunch of issues on the Mack;brakes,better tires,gear oil leaks,3 inch lift at the front axle for tire clearance,calibrating the speedometer,installing an air compressor and trailer brake lines,and some body work big_eek . Once those projects are done,it'll be smaller stuff:better mirrors,upholstering the seats,maybe a new headliner,new windshield,window channel and door glass,aftermarket power windows and windshield wipers,as money permits. Hopefully I'll have it on the road by next Summer.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck