Tires hitting leaf springs. - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 23 (permalink) Old 11-16-2016, 03:46 AM Thread Starter
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Tires hitting leaf springs.

Sorry to make another post.

With another random question, but my new to me 2001 F350 has.. what I think is a leveling on the front, and what look like probably 35" tires ( they are metric, but they look about the same height as my raptor tires ).

They rub on the leaf springs when I turn sharp, which can't be good.

Even a lift wouldn't solve this, what do I do? Get different wheels that offset more? narrower tires? ( I'll go look up the actual size here in a bit )

2001 F350 Crew Cab Long Bed.
2010 6.2L Raptor
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post #2 of 23 (permalink) Old 11-16-2016, 03:56 AM Thread Starter
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Re: Tires hitting leaf springs.

So they are LT325/65R18 Cooper Discovery A/T3 Whith I don't know what wheels.




2001 F350 Crew Cab Long Bed.
2010 6.2L Raptor
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post #3 of 23 (permalink) Old 11-16-2016, 06:52 AM
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Re: Tires hitting leaf springs.

If you are planning to keep your tires/wheels, using spacers can solver your problem.
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post #4 of 23 (permalink) Old 11-16-2016, 09:59 PM
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Re: Tires hitting leaf springs.

the truck came from factory with 29 tall by 9.5 wide tires on 16 inch rims

what you have now is a 35 tall by 13 wide tire on 18 inch rims.
i bet the rims have the wrong offset for those wheels.

i run a 33 by 11.5 tire on factory rims and have no issues.

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post #5 of 23 (permalink) Old 11-17-2016, 01:27 AM Thread Starter
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Re: Tires hitting leaf springs.

Thanks.

Yea I wouldn't doubt it. ( wrong offset ).

Any idea what offset wheel I should look for, if i kept the tires?

I know they will stick out a bit, but that alright.

Might just sell them all and drop down to 33's anyway.

2001 F350 Crew Cab Long Bed.
2010 6.2L Raptor
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post #6 of 23 (permalink) Old 11-17-2016, 09:51 AM
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Re: Tires hitting leaf springs.

sorry, i don't mess with aftermarket rims so i would not know how to figure offset.

another thing to consider is our trucks are supposed to have hub centric rims, and most aftermarket rims are lug centric.
this means instead of the rim fitting on the hub perfectly to keep it centered on the hub, it is relying on the lug nuts to center the rim on the hub.
hub centric is why you sometimes have to WHACK the tire to get it off because of oxidation or dirt buildup between the rim and hub "gluing" the rim to the hub.

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post #7 of 23 (permalink) Old 11-20-2016, 05:03 PM
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Re: Tires hitting leaf springs.

You won't find an off the shelf wheel with less than 4.5" offset. The nature of the leaf spring suspension will lead to tires rubbing as they get larger and wider.

You could use a wider rim to square up the sidewall but that pushes the outer side further out and then you risk rubbing the fender liner or the bumper lip.

You could drill and tap the steering stops and screw a bolt in. That's what I did with my 04 to keep the 37x13.5 on 9" w/ 4.5" BS (7" lift - 3" hanger/shackle & 4" leafs) from rubbing the leafs. Problem is you take a truck with a huge turn radius and make it even bigger. A 3 point turn now becomes a 5 point turn.

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post #8 of 23 (permalink) Old 11-21-2016, 02:22 AM Thread Starter
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Re: Tires hitting leaf springs.

Lol thanks. Maybe I'll just go down to 33's. Would make loading snowmobiles less ridiculous too.


Don't particularly like the wheels or tires on this truck anyway.

I love my Duratrac's on my raptor.

2001 F350 Crew Cab Long Bed.
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post #9 of 23 (permalink) Old 11-21-2016, 01:22 PM
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Re: Tires hitting leaf springs.

You shouldn't have any problems getting new rims. I would look at some with an offset of -12. Should put your right about where you want it. Don't go too wide either, get like a 9".

I have 37's and I don't rub on my leafs.
Also dropping from a 35 to a 33 is only a 1" drop in height. Plus your metric tires are only 34.5" anyway.

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post #10 of 23 (permalink) Old 11-21-2016, 06:10 PM
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Re: Tires hitting leaf springs.

it is more a combination of width and height. a 35X13.5 may hit where a 37X12.5 will not.

tom
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