Re: Which axle 3.08 or 3.42?
Thanks for your input garyharville. I'm going with the 3.08 and hoping to get better mpg. I think the gearing is ok, but I'm thinking a reprogram for the trans will be needed.
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72 GMC Sierra Grande SWB 402 BB A/C
(Owned it since 1973)
99 Silverado 1500 LT with 315K miles
(RIP)
2012 GMC Sierra SLT
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