gears
Assuming the stock tire size was 235/75R15 and the stock axle ratio is 3.55 -
New ratio = old ratio x (new tire height / old tire height)
Old ratio = 3.55
New tire height = 35 inches (eh, give or take)
Old tire height = 2 x (235 x 0.75) / 25.4 + 15 = 28.9 inches, give or take
New ratio = 3.55 x 35 / 28.9 = 4.29. So looking at either a 4.10 or 4.56 standard offering, with the 4.56 being the more preferable choice for most, IMO.
IIRC, 4.88 is about the biggest ratio that will physically fit, although some say that the gearset isn't as physically stout as the lower ratios...
Keep in mind if you have 4WD, will either need to change both axle ratios to match, or never ever lock in the front...
New ratio = old ratio x (new tire height / old tire height)
Old ratio = 3.55
New tire height = 35 inches (eh, give or take)
Old tire height = 2 x (235 x 0.75) / 25.4 + 15 = 28.9 inches, give or take
New ratio = 3.55 x 35 / 28.9 = 4.29. So looking at either a 4.10 or 4.56 standard offering, with the 4.56 being the more preferable choice for most, IMO.
IIRC, 4.88 is about the biggest ratio that will physically fit, although some say that the gearset isn't as physically stout as the lower ratios...
Keep in mind if you have 4WD, will either need to change both axle ratios to match, or never ever lock in the front...



