CJONE
Veteran Member
This has probably been mentioned previously but it should be noted when changing tire sizes on a FWA, the change needs to be worked out as a percentage rather than simple addition. For example, adding 2" to rears of, say, 40" diameter results in a 5% change. (2 divided by 40) Adding that same 2" to the fronts of, say, 24" diameter would result in a change of approximately 8%. (2 divided by 24) The result of this scenario would be that the fronts will be "leading" the rears by much more than the design intent. The same result would occur when chaining the fronts and rears assuming that the chains increase the OD by the same amount front and rear. The front wheels would be trying to outrun the rear wheels resulting in more stress on the front drive. Not saying it would or would not be catastrophic over time.
Thank you, Great info! CJ