SD axle dimensions? (D60 swap question)

[CT Performance, Inc.]

Thanks guys!

We have everything needed to put any OBS to '11 axles and suspension in these trucks...

[toad]

What gear ratio do you need?

[truckyard1]

What ratio do I need? I'm actually thinkin 3.73 might be perfect, 3.55 has nowhere near enough balls for how I use my trucks, but 4.10 makes the rpms howl goin down the highway(unless I go with 37's, hmmmm...)


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[truckyard1]

Thanks Cary ill give you a call. I actually talked to you a couple months ago bout the rsk swap for an OBS D60


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[CT Performance, Inc.]

3.73 work great even towing IF you got HP...I have 450HP by turning the chip up so can use the HP for short bursts passing if needed. But if I had my choice I'd have 4.10's runing 35" tires. 7.3's at 2000rpm @70+- is perfect.

They like to be at 2300-2500rpm in the mountains towing..

[BigFuel]

^Agreed on Cary's engine power math. Our engines like to hum and cruise with a load above 2000rpm. With my hauling needs it is looking more and more like I need a second truck (and win the lottery) so that I could dump it and Cary's and pick it up in a couple months with everything I want to have fun.

[CT Performance, Inc.]

You just need this...http://www.powerstroke.org/forum/tru...-sc-built.html

[BigFuel]

Yes I do but not the financing to go with it

[truckyard1]

Originally Posted by BigFuel

^Agreed on Cary's engine power math. Our engines like to hum and cruise with a load above 2000rpm. With my hauling needs it is looking more and more like I need a second truck (and win the lottery) so that I could dump it and Cary's and pick it up in a couple months with everything I want to have fun.

Its always seemed to me that my MPG's start nosediving when I go above 2k maybe its my tired injectors

[JSchuricht]

That is true, above 2k RPM the fuel gauge starts to move rather quickly.