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I’ve got to agree with you on the 3.15’s and I’ve gone up in tire size to the 275/60/r20.
Even driving home from work tonight, I was thinking about my gearing. I am at 1600 rpms at 80mph in 6th, and somewhere close to 2000rpms at 90. The 3.15s = so much wasted top end, though because of it, I may or may not have hit 120 at 2500rpm and lots of peddle left.

I did try to data log my truck on an ‘off-road course’ doing the 3rd gear pull, and hit 90 (going off of fuzzy memory) I believe I was at 4000rpms, I didn’t have the cojones to get to 6000 (guessing that’s why they make dynos).

I still love it that the 3.5 can burn tires in 1st and bark it into 2nd. Next EB is going to get at least 3.55s.
cool. the 4.10 and LSD was installed yesterday. I put the 93 performance tune back on with the new axle ratio updated before I left the shop. It is noticeably quicker on the bottom end. I need to wait until I get to some dirt or mist / rain slick asphalt before I can really test out the limited slip ;)
 

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