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Re: Which axle 3.08 or 3.42?
No complaints what so ever in town. One difference I didn't mention is that the '99 4-speed in tow/haul mode had very harsh shifts, but the 2012 6-speed has smooth shifts in tow/haul mode.
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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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