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Re: whats the LS swap mpg gains?
Glock35ispc did a 5.3l/4L60 swap with 3.4 gears. He said he got 20 MPG. Others have claimed the same. I think he had a shorter tirethan you do. With a 4.10, you will lose a lot of MPG, but gain towing and playing ability.
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'70 GMC C1500 LWB
Power disc brakes. WooHoo!
Posi 6 Lug Dana 60
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