265/75/R16 BF Goodrich K02 Rub on Zero Offset?!

I've had this wheel tire setup on my Taco for about 3 months and had convinced myself that it didn't rub under any circumstances. I'd pulled the wheel lock to lock and looked around the fender liner, suspension etc and didn't see any obvious rub points. That said the suspension was just at static weight/compression.

Yesterday I took a left turn at a bit of speed crossing traffic to dive into a gas station and got what must have been pretty good compression from the dip/ramp at what was likely full left lock or near and heard a quick, "scuff" noise. Getting out to look I came to the conclusion the sidewall probably hit this ledge on the fender liner (marked in red) for around half a rotation.

Anyone else run into issues with this setup? Truck is stock height, but is getting lifted 2/1 pretty soon with 6112's and 5160's and a set of custom Deaver leafs in the back for 1" lift. I'm starting to wonder if I shouldn't go ahead and do some UCA's even with this modest lift given for instance the Accutune ones claim to move the wheel forward a bit (they claim you'll clear 33's without cab mount chop etc) which I think (maybe my intuition is wrong) would help address that potential rub point. You're inclining the steering axis forward which I think would generate more clearance, albeit slight. Here I was thinking I'd only need those UCA's for 33's or something.

 

Interesting I never rubber up there with my 265 or 285 set up on +1 wheels. I only started rubbing under compression with my -25 wheels and 295's even then I'm eating the fender flare now.

But having said thatif you turned in with a hard compression the back of the tire could tag the liner but that to me is a bit of a minor point I would look into to much.

A lift unfortunately won't save you from a rub point like this. It'll make it harder to get there but the tire will eventually land in the same spot. A 285 only making it more likely, an extended bump stop is the only way to help keep the tire down under compression.

Your intuition regarding uca's is close as you lift your caster drops swinging the tire further back into the wheel well a uca will help correct that to a factory setting. If your looking to push it forward with the lca adjustment a uca with to much caster can actually hinder the gains you can get. To achieve best results an adjustable uca with someone skilled at custom alignments will give you the best results.

 

Yeah suffice to say I was shocked man. I thought this was a *zero* risk wheel tire fitment. Maybe it is for a +1 wheel like the stock 16" that come on the truck. For sure this looks a lot beefier in terms of where the wheel sits relative to the liner but nothing extreme. I would say it's about perfectly flush or just a hair outside of flush where the stock wheel/tire setup was fairly sucked in.

On the Accutune UCA they claim you can run 33's without CMC, tho I'm not sure they go so far as to say you won't need to trim anything. They have you turn the front cam all the way in and the rear cam all the way out to counter their pushing the tire forward. The claim is when all is said and done you'll end up with 2~4 degrees of caster.

 

It is possible to run a 285 on a 0 with minimal rubbing I did for a year with bolth spc UCA's and dirt king. You'll have to lose your mud flaps and tuck the front fender liner a bit that's all I had to do ontop of the alignment.

 

You rub the cab mount at lock? I did talk to Accutune today, they don't claim you won't need to trim anything but they say their particular take on UCA you will only need to trim liners and fold the pinch weld a bit for 285/70/R17.