Will wheel spacers cause more wear on tires and suspension? - 2014+ Jeep Cherokee Forums
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post #1 of 20 (permalink) Old 05-09-2017, 05:48 PM Thread Starter
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Will wheel spacers cause more wear on tires and suspension?

I have an ad1 with the hazard sky lift. Im buying a new set of tires (245 65 17s) in the next couple days to get a more aggressive look and gain some more clearance as well. I'm also buying the 1.25" bora spacers because I want a wider stance. I was told by a fellow car guy to stay away from spacers with this kind of lift as it will put more strain on my susoension and cut my tires life in half. I have two questions.

1. Will the spacers really cause those issues?
2. Should I install the spacers before or after I get no tires. My concern is that if I instal the spacers after, it would throw the alignment out of whack.

I'm new to lifts and suspensions, as I've always had smaller sedan style cars. This is my first jeep, any thoughts are appreciated.

Thank you.

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post #2 of 20 (permalink) Old 05-09-2017, 05:49 PM Thread Starter
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*new tires

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post #3 of 20 (permalink) Old 05-09-2017, 05:53 PM
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I'll be following this as I have the same questions.

Also heard it's bad on a few other things.

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post #4 of 20 (permalink) Old 05-09-2017, 05:54 PM
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1.25" spacers is 31mm. That will bring you to -10 on your wheel offset. I would worry about hitting the fender at that point. To me, that sounds way to extreme. The TH uses -31 offset, so I would get a 10 or 15 spacer to equal a TH plus a little more.

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post #5 of 20 (permalink) Old 05-09-2017, 05:56 PM
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I haven't used spacers, so take this with a grain of salt (or a rock, or a boulder)...

Spacers move the tire mount further away from the vehicle. From a pure mechanical viewpoint, that's more leverage/stress at the mount. Whether it's enough to make an appreciable difference, I don't know.

As far as tire wear, as long as the overal geometry stays the same, it wouldn't think it would make a difference. The question is whether the geometry actually does stay the same.

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post #6 of 20 (permalink) Old 05-09-2017, 06:09 PM
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Spacers (adapters) have absolutely no effect on tire wear... I have run them on several vehicles without issue when properly installed. For some time we ran 1.25" spacers on our KL TH. I loved the stance this gave it, but when paired with the 265/65r17 tires it did force lots of trimming on the front wheel well due to the increased scrub radius. We thought we had a deal on some aftermarket wheels and I sold those spacers, but when the wheel deal fell through I replaced them with 3/4" spacers for a bit more clearance when turning with the tire stuffed.

If you choose to go with the 3/4" BORA adapter/spacer I HIGHLY recommend getting the studded versions and converting to lug nuts. The factory lug bolts threads are longer than 3/4" and they will bottom out against the rotor. This is just barely fine for 4 of the lug bolts as there are holes in the rotor that give just enough clearance. But one hole will line up with the rotor retaining bolt. It will bottom out on it and render that lug bolt useless.

I spoke with BORA about this and they assured me I must have been doing something wrong since he has sold dozens of these for KLs.... Even after I sent pictures and measurements they were in denial. What I got out of this was that there are a lot of KLs running 3/4" spacers that only have 4 functioning lug bolts.


As for stress on other parts, the increases leverage and scrub radius is harder on the unit bearing and joints... Not enough to concern me, but it is.
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post #7 of 20 (permalink) Old 05-09-2017, 06:33 PM
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This is one of the most debated topics on the internet, lol.


I ran spacers on my ZJ and JK for several years without any issues. When I had my Focus ST a lot of those guys were running spacers and spending a lot of time at the track, auto-x, ect. without issues.


Of course, like was said above, you need to get the proper size or you'll rub. It may also be illegal in some cities/counties/states to run spacers so check your local laws.

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post #8 of 20 (permalink) Old 05-09-2017, 07:05 PM Thread Starter
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Originally Posted by SS_Syndicate View Post
Spacers (adapters) have absolutely no effect on tire wear... I have run them on several vehicles without issue when properly installed. For some time we ran 1.25" spacers on our KL TH. I loved the stance this gave it, but when paired with the 265/65r17 tires it did force lots of trimming on the front wheel well due to the increased scrub radius. We thought we had a deal on some aftermarket wheels and I sold those spacers, but when the wheel deal fell through I replaced them with 3/4" spacers for a bit more clearance when turning with the tire stuffed.

If you choose to go with the 3/4" BORA adapter/spacer I HIGHLY recommend getting the studded versions and converting to lug nuts. The factory lug bolts threads are longer than 3/4" and they will bottom out against the rotor. This is just barely fine for 4 of the lug bolts as there are holes in the rotor that give just enough clearance. But one hole will line up with the rotor retaining bolt. It will bottom out on it and render that lug bolt useless.

I spoke with BORA about this and they assured me I must have been doing something wrong since he has sold dozens of these for KLs.... Even after I sent pictures and measurements they were in denial. What I got out of this was that there are a lot of KLs running 3/4" spacers that only have 4 functioning lug bolts.


As for stress on other parts, the increases leverage and scrub radius is harder on the unit bearing and joints... Not enough to concern me, but it is.
Thanks for the info. So ideally, if I go with the 1" spacer instead, I should be able to avoid the factory bolts bottoming out and decrease trimming?

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post #9 of 20 (permalink) Old 05-09-2017, 07:24 PM
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Quote:
Originally Posted by SS_Syndicate View Post
Spacers (adapters) have absolutely no effect on tire wear... I have run them on several vehicles without issue when properly installed. For some time we ran 1.25" spacers on our KL TH. I loved the stance this gave it, but when paired with the 265/65r17 tires it did force lots of trimming on the front wheel well due to the increased scrub radius. We thought we had a deal on some aftermarket wheels and I sold those spacers, but when the wheel deal fell through I replaced them with 3/4" spacers for a bit more clearance when turning with the tire stuffed.

If you choose to go with the 3/4" BORA adapter/spacer I HIGHLY recommend getting the studded versions and converting to lug nuts. The factory lug bolts threads are longer than 3/4" and they will bottom out against the rotor. This is just barely fine for 4 of the lug bolts as there are holes in the rotor that give just enough clearance. But one hole will line up with the rotor retaining bolt. It will bottom out on it and render that lug bolt useless.

I spoke with BORA about this and they assured me I must have been doing something wrong since he has sold dozens of these for KLs.... Even after I sent pictures and measurements they were in denial. What I got out of this was that there are a lot of KLs running 3/4" spacers that only have 4 functioning lug bolts.


As for stress on other parts, the increases leverage and scrub radius is harder on the unit bearing and joints... Not enough to concern me, but it is.
^^ ME... ME-ME !!!...

Ok I wanna start something now...

About that rotor retaining bolt... Since this a spacer/adapter topic, I have to ask... does one really need that bolt ?

The adapter will keep the rotor nice and snug on the hub even when you remove a wheel, because the adapter does a much better job than any retainer bolt... I think...

Ok I'm gone >>>>>>>>>>>>>>>>>>>>>

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post #10 of 20 (permalink) Old 05-09-2017, 07:56 PM
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Ok... a picture is worth a few words apparently, so here's the retainer bolt, if anybody wanted to see it :


It's a tiny thing used to keep the rotor in place when the wheels are off. That's all it does.

I read one very interesting comment on another forum about these bolts : on lug bolt hub designs like our KLs, this bolt has one pertinent use : keeping the rotor from rotating on the hub when the wheel is off, so that the the lug holes are visible/accessible when it comes time to remount wheels. No need for this on a studded hub.
In the case of adapters, imagine this tiny bolt replaced with 5 lug bolts, torqued to 100 ft-lbs. Yeah, no real need for them in this particular case, and removing it will allow all 5 wheel lug bolts on a 3/4" adapter to do their job holding the adapter/spacer down on the hub.

To remove these bolts, you may need an impact screwdriver as they tend to stick pretty good in there...
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Last edited by Mark_; 05-09-2017 at 08:04 PM. Reason: forgot/added one detail
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