Is there a consensus for the ideal wheel offset to reduce rubbing??

If there is, I haven't seen it. Searched a couple of different forums and seen hundreds of posts on the subject, but there doesn't seem to be a consensus on the matter.

I'm going to 285s on stock SR5 wheels, which apparently have a +33 offset. The OEM TRD wheels have a +4mm offset, which moves the wheel/tire outboard about an inch.

In looking at the areas most likely for the tire to rub on the fender, moving the whole thing outboard looks like it might actually make rubbing worse. Or would it? Or would I then get rubbing n suspension components?

I see tons of posts about people running a certain wheel on a certain tire with a certain lift and some rub and some don't and it's all just a bit nonsensical.

Does anyone actually know what offset is ideal for reducing rubbing? 0 mm? -12 mm? +38 mm? Seems when I was on a Jeep forum, they all knew which offset was ideal to reduce rubbing and was surprised there is no general consensus here.

Really couldn't care less about cosmetics and where the tire sits in relation to the fender; just want to know if I do get rubbing, if I go to a certain offset rim, if it will eliminate or reduce rubbing.

 

Stay under -10mm offset if you want to minimize the possibility of rubbing. The higher the +offset, the closer it moves to the control arm and suspension, and the higher -offset moves you out to rub on the fender area/body mount. Also getting a wheel no wider than a 17x8 would help.

 

Maybe someone can correct me if I’m wrong, but aren’t the stock OR wheels already 8.5?

 

Subscribing... my 6110/5160 order was cancelled and got Ironman foamcell pro stage 2 on the way. Would love to use stock wheels (2020 trd off road premium) With BFG 285 load C but was told that it would rub on control arms....

 

I’m not sure about the specs on that lift, but usually there are good reasons for after market UCAs, which would probably solve that problem. I get it, guys try not to install UCAs because of the cost, but it’s worth it in the end, imho. I would definitely factor in UCAs with a 285.

 

The kit comes with UCAs but a few folk mentioned that using stock wheels might still rub on the control arm due to offset and being so wide.

 

Yeah, I’d get it on and take an iterative approach, personally. New wheels are a big cost, especially if they’re American made and as good as the stock ones. Great you have a UCA!

 

I have the foam cell pro stage 2 on my 2020 orp. Right now it's stock wheels and tires while I decide on a route to go. There aren't many circumstance where you won't get rubbing with 285. With them in that far its the UCA when you push them out its body mounts and inner wells and bumpers. Out you can modify slightly to fit. Too far in you can't. I'm probably going to go 0 offset on 17x8.5. My guess is +6 would be the closest to needing nothing but hard to say for sure.

 

Do you happen to have any pictures of it as it sits?

 

I'm sitting with rake because I went stiff springs in the rear and no load currently.

 

Thanks for the pic. That looks good. I was worried that stock tires would look way too small - not bad at all. As for the rake - I am hoping to maintain stock rake on mine. I chose regular springs. Btw, any issues with the safety sense? Dynamic cruise control?

 

You might have to lower your front coils unless you told them you want to maintain factory rake. I think they tend to set it as level. As for the tires. Even going to 285 is only about an inch in diameter change. I think the tread type has more to do with the look than the tire size itself, but that's just my opinion. All of the TSS technology functions as designed. Havent had any issues.

 

I did ask to have it set at 2” front and rear to maintain the rake. Will make a build thread once I get them installed.

 

OR wheels are 7.5" wide.

 

SCS wheels have the right off set. I have my 17x8.5 wheels waiting to go on. My only concern is running 285’s after adding Eibach springs for my Pro.

 

+6 offset (as someone mentioned) or higher is the short answer to fit 285's with the fewest rubbing problems. Your stock SR5 wheels will be fine since they are +15 offset (I believe).

So lets say you have 285's on your SR5 wheels.......the two major factors to consider are your lift height and your alignment.

The higher you go with your lift (above 2" or so), the less caster you get out of your alignment. Less caster places your tire further back in the wheel well towards the mudflap. This can lead to rubbing on mudflaps and body mounts. You can counteract this with aftermarket UCA's which allow you to increase you caster and push your tire forward in the wheel well with some of the higher lifts.

Lower lifts (below 2") generally don't need UCA's because you can get your caster to sit in an area where your tire doesn't rub on the mudflap or body mount.

But push your caster too far forward and you might rub on the front fender liner/fender flare. I find this area to be the easiest to remedy if there is a rub so going high on caster is an easier fix.

I can't tell you exactly what caster number will get you no rub with SR5 wheels and 285's, but if you shoot for a caster between +3 to +3.5, I'd bet you'd have a pretty good chance at not rubbing. How you get to that +3 to +3.5 caster depends on your lift height.

 

Great info Jake!! That’s why I’m thinking of changing my UCA’s soon as they change my springs out and do it all at once.

 

With 2.5" of lift in the front, the shop was able to get the alignment back into spec. But there is still little room for error in the wheelwell. I trimmed off the fender lip in the front and think I'll be OK, but the mud flap is going to have to come off and get modified before the 285s go on...

 

I am not sure about the offset "concensus" , but as of right now I have a 275 17 on the stock ORP rims and there is a good amount of room before rubbing starts, Tues. I get some 8" wide 0 offset XD rims put on we'll see how that works. BTW, we have a RevTek 3" front- 2" rear leveling/lift on it. And when I figure out the posting picture thing(not real computer savy) show some pics of what a 275 on zero offset is like lock to lock. Hope this helps a little.

 

Just go with 255/80/17, objectively it’s a better tire size for the 4Runner for almost every scenario, and it’s easier to fit without rubbing.

 

Rake is tricky. In this photo you’re Parked on an incline, and although you have more space above your wheel arch in the rear, it still looks like you have negative rake. Measuring hub to fender edge gives you lift. Park on a level preferably concrete surface and either measure the frame or put a level on the bottom of the frame rail to see if you’re level.

 

Oops, thanks nimby!

 

I believe they’re 7.5” wide and the Pro wheels are 7”. Unsure of the offset without research (unless already noted in this post).

Edit: looks like someone beat me to it

 

So obviously just because your alignment is in spec, doesn't mean you won't rub. I'm guessing your caster is probably on the lower end of spec (2.5 -2.8 maybe?).

Besides the mudflap, running 285's with this lift height and alignment could potentially cause you to rub on the body mount as well. If you want to keep that 2.5" lift height and not have to remove/modify the mudflap and/or body mount, you would have to get UCA's so that you can increase your caster to the higher end of spec. The benefit of UCA's and higher caster is that your truck will drive better and track straighter on the road with a lot less of the wandering you tend to get with lifted trucks.

If you don't want to spend the money on UCA's, then you'll have to modify the mudflap and potentially spend money on a body mount chop (or do it yourself).

 

305/50R20's on 20" x 9" with -12* offset. Had to do the body-mount shop,. there's still a very minor rub on the mudflaps.

 

Hey, peter2772000, please post a photo!

 

Body mount chop

 

How about a photo showing those big wheels and tires that must look cool!

 

Pretty sure I've already bragged......errrrr, posted a coupla pics, but here goes

 

Tailgate's since been repaired and today I applied the edge trim to all the cut/trimmed front/rear bumper skins.

Oh, and I chose to include a pic of our Level III attack dog in the background. Looks harmless but three kids have gone missing in our neighbourhood in the last two years. G'head and laugh.

Jez sayin'....