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Bowed · 11-11-2008, 05:18 PM

My 06 has the 4.3 V6 / auto trans with 3:23 gears and 245/70/17 tires . I am thinking about a mild lift but I am not sure how much I can Increase tire size without killing the power curve and hurt accerelation and gas milage . Those 3:23's are already pretty high and I'm not going to change gear ratios . Also on these newer trucks do you have to reprogram the computer to match oversize tires ? . Thanks.

.edit .. this truck is for light duty so I'm not worried about losing hauling abulity .

11-11-2008, 05:18 PM	#1
Bowed Registered User Join Date: Oct 2002 Location: where it's hot Posts: 1,059	how much tire ? My 06 has the 4.3 V6 / auto trans with 3:23 gears and 245/70/17 tires . I am thinking about a mild lift but I am not sure how much I can Increase tire size without killing the power curve and hurt accerelation and gas milage . Those 3:23's are already pretty high and I'm not going to change gear ratios . Also on these newer trucks do you have to reprogram the computer to match oversize tires ? . Thanks. .edit .. this truck is for light duty so I'm not worried about losing hauling abulity . Last edited by Bowed; 11-11-2008 at 05:56 PM.