Include

[SKINUM]

SKINUM previously said:

So, does the size of the tire alone warrant regearing? A 33 inch tire comes in different weights. So, for instance if you go with a 33x10.50 in comparison to a 33x12.50 the 10.50 is going to be less weight. Does the overall height change the revolutions of the tire which would cause a gearing issue or does the weight cause this issue? I guess it could be combined.

To me it seems that if your overall weight increases by 3-4lbs per tire over stock then regearing isn't really needed.

For instance a 255/85/16 tire: weight 53lbs Rim width 7in rpm's 625 33.3
265/75/16 tire: weight 51lbs Rim width 7.5 rpm's 652 31.9

Net difference 1.4 and 8lb increase

Seems to me your decreasing your rpm's by the increase in tire height then a increase in weight. So, the rpm's run lower with only a increase in weight of 8lbs. To me this combination would seem to give the advantage of clearance and no real reduction in torque or gas mileage.

However, if you go with a 35 then your total weight of each tire is 64lbs. So, your total weight increase is 52lbs. and rpm's drop to 598. 31.9 stock and 34.8 =2.9 difference. In this case it seems that rpm's decrease more because of the additional weight rather then height.

With my reasoning it seems that with the 33 inch option there would be no real disadvantage. Actually, with the added height, less rpm's and a increase of only 8lbs to me it would seem more advantageous.

So what am I missing?

Anyone?