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Old 03-08-2010, 01:44 PM
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help with grinding calipers

has anybody used a grinder on their calipers to fit 17" moab rims off of a jk, i know they will fit with 1/4" spacer but hav been told 1/8-1/4" of grinding will do the same job, want to put them on 05 limited 5.7 but am not too confident with hacking away at the calipers. i don't want to do more damage than good.
also i hav read lots of sides to the spacer issue, if i do hav to use spacer what is the best manner in which to mount them, and what precautions can i take to make them as safe as possible
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Old 03-08-2010, 06:31 PM
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Re: help with grinding calipers

Definately not the ideal way to go about it. Personally I wouldn't be happy either grinding calipers or using spacers.
Both mods are illegal in most states for a reason.
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Old 03-08-2010, 07:27 PM
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Re: help with grinding calipers

I dont really understand, what exactly are you thinking of grinding away from the calipers to make the rims fit?

If its anything where the calipers mount onto the spindle then I would take it to a machine shop where they can grind it perfect, if its just along the outside of the caliper to reduce the size of it, I guess you can but why would you want to do that?

Get another set of rims that fit properly I say.
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Old 03-08-2010, 07:36 PM
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Re: help with grinding calipers

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I dont really understand, what exactly are you thinking of grinding away from the calipers to make the rims fit?

If its anything where the calipers mount onto the spindle then I would take it to a machine shop where they can grind it perfect, if its just along the outside of the caliper to reduce the size of it, I guess you can but why would you want to do that?

Get another set of rims that fit properly I say.
i hav no idea!! i think the outside of caliper to allow the rim to spin freely. i planed on using the 1/4" spacer but hav been told that its just minor grinding to get rim to fit without spacer. im not a fix-it guy would hav to take it to a shop to do the work, but only if it will not cause more of an issue than the spacer.
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Old 03-08-2010, 07:38 PM
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Re: help with grinding calipers

Yeah, the wheels don't offer the required clearence for the caliper, so some rough bastards with grind the "front" face of the caliper to allow a few mm of clearence for an incorrectly fitting wheel.
Just use the right wheel I reckon!
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Old 03-08-2010, 07:47 PM
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Re: help with grinding calipers

OK, I think I got it now. So if you try to fit the rim on the outside edges of the calipers are too large.

Me, I say hell no to grinding the surface of the calipers to make a certain rim fit. From what I understand you want to do, you could prob get away with it. But with the tight clearance already, I wouldnt chance it. And I also heard useing spacers is dangerous, like if you go offroading, it puts undesigned stress on the wheel bolts and the lug nuts will be threaded on that much less to fit the spacer on.

Have you already tried to mount the rims, and they wont go on? My 05 WK came with 17" rims, so why wouldnt those 17" rims fit?
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Old 03-08-2010, 07:51 PM
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Re: help with grinding calipers

^^^ You got it
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Old 03-08-2010, 08:50 PM
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Re: help with grinding calipers

no i have not mounted them yet, some say that the rims fit the 05 some say ill need a spacer (not much help). tomarow the old man emu 2" lift will be instaled and i will attempt to mount the rims. if they dont clear i will use the spacer for now. i agree that grinding the caliper sounds a bit extream. the back spacing of the JK rim is diffrent than stock WK 17" rims.
my main goal is to run BFG MTs without cutting the bolt or pounding in the pinch weld
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Old 03-08-2010, 09:08 PM
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Re: help with grinding calipers

Yes, I have done it. It really doesn't take much, and it is basicly the same as grinding off casting flash. You can see a very small picture of it in my avatar. I've been wanting to get out my camera and lights to do a detailed how to article, but I've been getting ready for my deployment to Afghanistan next week.
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Old 03-08-2010, 09:35 PM
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Re: help with grinding calipers

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Yes, I have done it. It really doesn't take much, and it is basicly the same as grinding off casting flash. You can see a very small picture of it in my avatar. I've been wanting to get out my camera and lights to do a detailed how to article, but I've been getting ready for my deployment to Afghanistan next week.
ok kool now i know it can be done! did you have any rubbing or did you fold the pinch weld or cut the bolt.
also be safe on ur deployment,
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Old 03-08-2010, 09:49 PM
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Re: help with grinding calipers

It rubs slightly at full lock on the inner fender liner where the pinch weld is. It doesn't rub hard, so I haven't messed with it. It clears the bolt, but just.
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