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Who Here Has Done New Gears w/ 37's?
Believe the time has come to do gears on my truck. It has 37x13.50-22 on it right now, but only 3.55 factory gears. Didn't bother me too much until I started towing a new boat that's around 5K pounds on a regular basis. Under 50mph, not bad, but when trying to maintain highway speeds up any small incline, EGTs rise a little too rapidly and boost to over 20psi just because the engine is lugging.
Thinking of going to 4.30's, but possibly 4.56? Whose done a gear swap and whats you impressions?
2008 F250 Job 3
8" Rize lift, 37x13.5-22 Nitto Trail Grappler MT's, 22" XD Monsters
H&S Mini-Maxx, DPF/Cat delete, S&B Intake