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Old 02-04-2016, 12:16 AM   #14
BigRed76
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Join Date: Jan 2010
Location: Loveland, CO
Posts: 1,921
Re: What gear/axle combo to go with?

I would run the 4.10's. I had a truck with a 350 Tbi, 33"s, 3.73's, and 700R4, and in 4th gear it was a bit sluggish until speeds were high enough to get the rpms in the 2200-2500 range. I no longer have the truck but always wished I had gone with 4.10's.

On my GMC I have now, it's got 33's, 4.10's and no OD, and with the rpms it runs at highway speeds OD would be great for it.
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1970 Chevrolet Custom Camper K20
1971 GMC Super K2500, 12V/NV4500 swap in progress
1971 Chevrolet Custom C10
1972 Chevrolet Custom Deluxe C20, 5.3/4L60E
1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi
2004 GMC Sierra 2500HD, LB7/Allison, CCSB
2005 GMC Sierra 1500, 5.3/4L60E, CCSB

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