LT225/75R16 on a 2011 Jayco33rlds
I posted in another thread my concerns with the ST225/75R15 Goodyear® Marathon Radial on our 2011 Jayco33rlds. I received a lot of good information on different ST tires and some suggestions on upgrad...
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Jay Flight 33RLDS wrote:
I posted in another thread my concerns with the ST225/75R15 Goodyear® Marathon Radial on our 2011 Jayco33rlds. I received a lot of good information on different ST tires and some suggestions on upgrading to an LT 16 inch tire. I am willing to spend the money on 16 inch wheels to upgrade to a LT225/75R16. I am looking at Firestone Transforce HT 225/75R16. The specs on the Firestone Transforce HT 225/75R16 indicates that the overall diameter is 29.3 inches. The overall diameter on the ST225/75R15 Goodyear® Marathon Radial is 28.30. Has anyone with a Jayco33rlds done this upgrade and if so what were the results? I truly appreciate the experienced minds that prowl these forums. Thanks for the help.
I have no experience with your TT. But I have upgraded tires on all of my TTs.
Some are eaiser than others to do.
Do you have 6 lug drums? If so, then that is a great start as 16" rims are most common with 6 lugs. If not, then a swap to 6 lug drums is likely the best solution.
The tire diameter is a concern in two areas. The clearance from the top of the tire to the wheelwell. It needs to be 3" or more. Measured when the TT spring equalizer is level.
With a diameter difference of only 1", that will only change this measurement by 1/2" over what you have now. So you are probably OK here, though you do need to check it to make sure. If you will not have the necessary clearance, then it can be obtained by a small lift. If the springs are over the axles, then a 1/2" lift block will work.
The other clearance issue is the space between the tires. You need 1" when level. So you will need 2" now in order for the new tires to work. You likely do have this much space. If not, then there is no easy way to solve this issue.
16" tires are a great upgrade, as it opens up a vast choice of quality tires to you. Due to the fact that many pickups take this size, it is one of the most common sizes available.
