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**argonaut** · 11-11-2012, 12:43 AM

Nick,
It depends on what motor you are going to use. In stock form a big block has more torque at lower rpm, so you can get away with shorter gears in your diff (3:73 for example) with those 35s. But if you have a stockish 350, then you'd probably be better suited with at least some 4.11 gears. You won't like your freeway rpms or your mileage. And the big heavy tires won't be doing you any favors there.
So let us know the details on your motor.

One question I had was why are you taking the 3/4 ton axles out?

11-11-2012, 12:43 AM	#2
argonaut Senior Member Join Date: Aug 2008 Location: Long Beach, CA Posts: 1,813	Re: 71 K10 SWB what axles Nick, It depends on what motor you are going to use. In stock form a big block has more torque at lower rpm, so you can get away with shorter gears in your diff (3:73 for example) with those 35s. But if you have a stockish 350, then you'd probably be better suited with at least some 4.11 gears. You won't like your freeway rpms or your mileage. And the big heavy tires won't be doing you any favors there. So let us know the details on your motor. One question I had was why are you taking the 3/4 ton axles out? __________________ Jason M. @argonaut62 1972 K5 Blazer CST, Turquoise 1966 K20 Short Fleet Pickup, Big Ugly 1964 C10 Short Fleet, Gertrude 2001 Porsche 911 Carrera 1996 Ford Bronco XLT 1980 Jeep Wagoneer 2008 Honda CBR1000RR 2005 Honda RC51 1981 Honda CB750C No dis-assemble Johnny Five! No dis-assemble!