265 or 285???

[SunlitComet]

yes. re-gear.

 

[KPOD]

yes. re-gear.

Even if I'm running 33s? I figure once I get my trans rebuilt with all upgraded parts, I'd get a BB tune and that would re-program my shift points and help the overall wear on my drivetrain due to lack of gearing.

 

[SunlitComet]

tune will bring on more power likely if you choose and stresses more. typically the suv was equipped with a 3.42 or 3.73 gear and the tire diameter was 30.2". so you see re-gearing would be good if you had a 3.42 and drove 33 with those. less stress for the tranny, quicker launch and less heat build-up in the diffy.

 

[milehighaz]

Late reply, but FWIW, I have 285's and 4.56's. The ratio REALLY made a difference with power turning bigger tires. Going 295's next month.