I am looking at BFG MT KM2 265/70R17 E-rated for the trial set up. It's 10.5" wide on a 7" wide wheel so although not 100% ideal for the road, its going to be perfect for the trail.
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Lateral stability was initially a concern, but my research and conversations with BFG and Disco Parts in Germany have me confident it's not going to be an issue.
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I have watched your tire size reviews extensively and you debunked my concern for steering knuckle and hub contact with this size tire. I do not believe I will need spacer but if so, I have a set now I can use. Since these tires are much smaller than what you are running, I expect no issues outside of some minor trimming and AC line relocation that I planned to do anyway.
LOL, I completely overlooked that size when pulling tires in for test fitting at home. I think I posted that I test fitted the following: 1st pair-275/70-18 duratrac and bbfg ko2, then 2nd pair bfg km2 in 255/80-17 and 285/70-18. After talking with a long time Disco 2 guy who actually prefers "tall-n-skinny" when possible, I decided on the 285/70-18 which is a hair under 34" but still barely wider than the bfg ko2 265/65-18 which in turn is the same size as a 265/70-17 as you are aware.
So, yes, my first concern and test was UCA rubbing at full droop. It cleared fine, close, but fine but I went ahead and flattened the outermost edge back anyway just to gain a little more gap and shape it into a rounded contact surface rather than the factory stamped sharp edge.
The only way this tire width can truly "fit" and "function" in all situations is to be on a tucked in factory wheel without any spacer. Anyone who says 33"-34" "fit" while using a spacer of any depth or probably even on the wider offset Compomotives, without a body lift or actual sheet metal cutting, and wheel well liner removal, are full of.... BS
However, your idea of squeezing the 265 onto a 7" wide wheel...hmm, i don't like but we all see people with jeeps and trucks having tires way too wide for the wheel. Ideally you'd use a, 8" wide 17 wheel with offset identical to the 18x8. That would be so sweet but it's simply impossible to find, I think. I wonder what Mudtech has found like that.
So, I thought that even though the 255/80-17 was PERFECT on the 7" wide wheel, and would more safely tuck up during full articulation, while making full lock turns easier, it just seemed too narrow for my lr3 weight. I'd use it in a heart beat on the D2 though on a steel 7" wide. Or the 265/75x16 on a factory 8" wide alloy.
I'm really interested in seeing how lateral stability feels if you go with that 265 on a 7". Unless it's at 50 psi +, I expect it to feel vary wallowing on the highway.
Today I modified my starboard side slider to move toward the rear by 1/8". LOL modifying modified/aftermarket parts. This was necessary because, as some may know, the left and right wheels can be asymmetrical by a small amount in where they make contact but you notice when pushing tight margins. Then I also had to bend up the bottom trim/guard on the ARB bumper - the little wing that shields the washer bottle, which I had already changed to be tucked up and forward as tight as possible.
(Side note rant: What a DUMB place to put a washer bottle and completely insane place to put the life-line air suspension valve block where even a little fender bender or bad line on a trail could break and air line fitting - then - poof, you're done, very done.)
Today I also removed my Kaymar tire carrier arm to grind down to steel removing the rust and repaint. What a pain the in butt :/ Anyone get a newer one of these recently? I wonder if they are galvanized yet. They should be!
Today I also created more space at the "frame horn" tight spot by removing the cover plate which had been put in place almost 10 yrs ago after cutting off the "horns". This increased that spots clearance by about 1/2" which is exactly where a full lock turn puts the tire edge.
Then underneath I modified the Rasta transmission plate turning up it's edges to allow better fitting against the Rover Specialties sliders. They'd always been in contact but my slider move rearward, required this as well.
Next I'll be refitting the snorkle with a better gasket/seal at contact with body to make it actually watertight.
Ooh, I really need to show you the hvac lines job I did and parts you should get before starting to make it awesome. It now has 0% influence on the fender liner and is 100% protected from any chance of damage.