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05 vs 07 on rpm's

758 Views 11 Replies 4 Participants Last post by  tramp_line_ape, 
tramp_line_ape
my brother has an '05 QCLB CTD with a G56, 285/70r17 cooper atr's. i have an 07 QCLB CTD with a G56, 285/70r17 cooper atr's. both 3.73's. why is at 2000 rpm i'm at 75 and he's at 65. the speeds are exact, but i'm at right around 75 at 2k and he's right around 65. what's the deal? is it gearing in the transfer case?
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ykdave
Are you comparing them both on the highway side by side?

Either way, it could be a crappy tach or miscalibrated speedo...

Other than that i would say that someone (maybe the dealer) had changed the gears...
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