Rear tire rub - 295/75 on OME Heavy

[tarbe]

I cleaned the 80 tonight after running at Razorback. I was surprised to find that my 295/75 BFG AT/KO on OME heavy actually rubbed in the rear. I didn't think they'd stuff far enough to hit.

Must have flexed her pretty well for only three diamond trails! Wish I had some pics of that!

 

[e9999]

heavies 2.5" or regular?

 

[Josh83]

Where did it rub specifically? Frame rail on drivers side?

 

[cruiserdan]

If you do not have lowered bump stops I would not be at all surprised to know that you had contact. As that tyre is close to 33.5 inches in height, it is expected that it will rub (albiet slightly) on the inside vertical wheelhouse panel. A 305/70/16 will also "brush" the inside of the wheelhouse if the vehicle gets "crossed up" (a condition whereby opposite ends are swinging in the breeze).
Such a case is depicted in the attached photo.

 

[Tools R Us]

heavies 2.5" or regular?

Springs don't matter, extended stops or wheel spacers will cure the rub if needed. This is where my 295 Nitto's touch.

 

[e9999]

Springs don't matter, extended stops or wheel spacers will cure the rub if needed. This is where my 295 Nitto's touch.]

springs don't matter??

 

[cruiserdan]

Not when compression is concerned. The upper travel limit is governed by the bump stops, not the springs.

 

[LandCruiserPhil]

Not when compression is concerned. The upper travel limit is governed by the bump stops, not the springs.

Even if you lower the bump stops with enough flex you will then hit the frame rails??????

 

[e9999]

Not when compression is concerned. The upper travel limit is governed by the bump stops, not the springs.

for a force large enough to compress either spring to the stop or body, yes, however, for a given moderate force upwards, a longer spring will make it less likely for the tire to rub since the body will be farther from the wheel, don't you think? So the issue of what lift one has seems relevant.

 

[MoJ]

for a force large enough to compress either spring to the stop or body, yes, however, for a given moderate force upwards, a longer spring will make it less likely for the tire to rub since the body will be farther from the wheel, don't you think? So the issue of what lift one has seems relevant.

"Less likely" true, but, the wheel well will only accept a given amount tire stuffed in it and that amount doesn't change no matter how much spring you have. (ceteris paribus of course)

 

[Tools R Us]

for a force large enough to compress either spring to the stop or body, yes, however, for a given moderate force upwards, a longer spring will make it less likely for the tire to rub since the body will be farther from the wheel, don't you think? So the issue of what lift one has seems relevant.

For driving to the mall, you are correct. For the trail you want to use all the suspension travel available to keep the tires on the ground as much as posable for the maximum traction. A spring stiff enough to keep big tires from rubbing would degrade traction and ride. Large tires are fitted by selecting the proper wheel offset and stop settings to reduce rubbing regardless of lift.

LandCruiserPhil's rig with about 6" lift and 37" tires doing the flex thing.

 

[tarbe]

Springs don't matter, extended stops or wheel spacers will cure the rub if needed. This is where my 295 Nitto's touch.

That's it. I just have about twice the bare spot. Both sides.