good advice
in my 68 when I shirch from NON AC to AC pulleys with factory blancer spacers
I questioned bolt depth. So I ran a test bolt in to measure depth and installed 4
new grade 8 with blue loctite that were longer. Also used factory spacer/retainer under
bolts on outside of balancer pulley.
No issues and belts lined up perfectly!!!!
Gerry
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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds
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