Want to upgrade tires

2-MTnesters wrote:

Me Again wrote:
A 2010 my require a wheel upgrade to go to G rated tires. So decide if you want to go to 17.5 rims or stay with 16". I would go Sailun S637 and rims if you need them, however make sure the larger diameter tires fit or you will have to pay for GY G614's. If that is the case I would go the 17.5 rims and 215/75R17.5's. The 17.5's are slightly smaller in diameter verses your Maratbombs.

Note a LT235/85R16G at 80 lbs inflation is rated at 3042(aka LRE).

Chris

OP shouldn't need a wheel upgrade as he has the same rig as me. Many Montana owners have done this very same upgrade and are able to use their factory rims with no ill effects. There is plenty of room between the tires and inside of the wheel well for the tire upgrade. As mentioned in my prior post, if you are not sure of the psi rating of your factory rims simply look on the back side of the wheel on one of the spokes. The pressure rating will be cast into the wheel. Also not sure why one would run their 'G' rated tire underinflated at 80psi when pressure requirement for that tire is 120psi. The more underinflated you run the tires the more heat that builds up which is the cause of MANY tire failures. 'E' rated GY Marathons required 80psi, I ran them at 80psi, 'G' rated GY G614's require 120psi, run them at 120psi. You can run them a few lbs under max but NOT 20-40# under. Tim