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Old 01-05-2014, 03:31 PM   #1
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Can you put 20" rims on a CJ7?

First time posting. I don't really have much experience with Jeeps, but from what I've seen, most people have 15 or 16 inch rims on their Jeeps. Why is that? Just because of availability and price, or is there some inherent advantage to having smaller rims on a Jeep? And lastly, could you actually put 20" rims on a Jeep? Specifically a 1984 CJ7. Thanks!

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Old 01-05-2014, 03:56 PM   #2
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I've heard of people trying, but the jeep will actually resist the torture. The jeep will move its studs around so you can't get the wheel on or sometimes the jeep may even step itself off the jack and lay flat on the ground so you can't get the wheels on.

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Old 01-05-2014, 05:04 PM   #3
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So basically, just stick with the 15 or 16 inch rims? Would that be best, or can you put something like an 18" rim on there without it having any of those problems? Thanks for the help!
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Old 01-05-2014, 05:11 PM   #4
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Old 01-05-2014, 05:23 PM   #5
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I've heard of people trying, but the jeep will actually resist the torture. The jeep will move its studs around so you can't get the wheel on or sometimes the jeep may even step itself off the jack and lay flat on the ground so you can't get the wheels on.
Hahaha. Love it.
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Old 01-05-2014, 05:36 PM   #6
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Actually, while the responses were about what I expected for his question, I am also wondering what I should do for my 2012 JKU. It has stock 18s and I would like to upgrade the tires. I don't want to spend on a new set of 18s if there's a good argument for dropping in rim size. I'm a new Jeep owner so forgive my ignorance. I don't know how small I can go while accommodating the brakes. If I was to stay with the 18s, I would probably hold off on a rim purchase for now.

I do like the look of less rim and more rubber but are there other reasons to drop in rim size?
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Old 01-05-2014, 06:46 PM   #7
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Also, is there an actual advantage to doing 15's and 16's, or do you guys just like those better?

Please don't joke reply to this; I actually want an answer since my dad and I are working on a CJ7 as a project car.
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Old 01-05-2014, 06:50 PM   #8
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The smaller the wheel, the more sidewall which will provide a softer ride under normal driving and when aired down you'll have a bigger contact patch which improves traction.
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Old 01-05-2014, 06:51 PM   #9
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Haha. That's funny right there
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Old 01-05-2014, 07:21 PM   #10
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Actually, while the responses were about what I expected for his question, I am also wondering what I should do for my 2012 JKU. It has stock 18s and I would like to upgrade the tires. I don't want to spend on a new set of 18s if there's a good argument for dropping in rim size. I'm a new Jeep owner so forgive my ignorance. I don't know how small I can go while accommodating the brakes. If I was to stay with the 18s, I would probably hold off on a rim purchase for now.

I do like the look of less rim and more rubber but are there other reasons to drop in rim size?
Pro Comp 52s in both 15x8 and 15x10 fit with no issues, no rubbing, no grinding on the caliper and tires for the 15s are significantly cheaper.
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Old 01-05-2014, 07:22 PM   #11
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The smaller the wheel, the more sidewall which will provide a softer ride under normal driving and when aired down you'll have a bigger contact patch which improves traction.
What he said plus much cheaper tires.
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Old 01-05-2014, 07:54 PM   #12
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What he said plus much cheaper tires.
Why cheaper, much more rubber. Profit margin?
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Old 01-05-2014, 11:02 PM   #13
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Why cheaper, much more rubber. Profit margin?
I can't answer that, because I don't know why. They just are. Price a set of 35x12.5x15 against a set of 35x12.5x20 and you'll see
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Old 01-06-2014, 09:11 PM   #14
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Thanks for the feedback. Like I said, I do like the look. Saving money is never a bad thing.... as I'm sure I should replace the spare as well.
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Old 01-07-2014, 01:45 AM   #15
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As someone who owns an 84 CJ7 the thought of that size rim on it makes me want to throw up. Why would you want to ruin a perfectly good vehicle with those rims? I don't get the deal with big ugly rims on a 4wd vehicle. Ive got to go now to the bathroom and puke out my dinner. Poor CJ.
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Old 01-07-2014, 02:38 AM   #16
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So some of those answers were a little bit much lol but you know jeepers we all freaking love our rigs anyway there is absolutely no reason why you "couldn't" put 20s on your jeep... but there are reasons why you shouldn't
1) sooo much more expensive for the wheels and later for tires too
2) they would look pretty pretentious (like one of those stupid escalades or some crap like that)
3) they would ride hard as hell
4) that size rim would practically destroy any off-road capability (unless you go with a 40+" tire or something massive like that
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Old 01-07-2014, 04:06 AM   #17
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Why cheaper, much more rubber. Profit margin?
Demand. There's a lot less demand for tires w/ larger wheels. The manufacture has to change the tooling/setup for a short run so the tires cost more.
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Old 01-07-2014, 04:22 AM   #18
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Yes you can put 20's on your CJ, my friend has some on his.



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Old 01-07-2014, 04:28 AM   #19
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lol that looks less like a CJ and more like a freakin beast haha
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Old 01-07-2014, 05:32 AM   #20
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Yes you can put 20's on your CJ, my friend has some on his.
....... Wow
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Old 01-07-2014, 11:29 AM   #21
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Yes you can put 20's on your CJ, my friend has some on his.



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Old 01-07-2014, 08:22 PM   #22
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That is sick!
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Old 01-09-2014, 11:54 AM   #23
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Old 01-09-2014, 04:17 PM   #24
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Now that is what i was talking about when I said about looking pretentious like an escalade HAHA if you like that look then rock it out but to me that is mildly disturbing
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Old 01-17-2014, 05:42 PM   #25
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The smaller the wheel, the more sidewall which will provide a softer ride under normal driving and when aired down you'll have a bigger contact patch which improves traction.
And the 8 inch wheel allows the tire to run at lower pressure and not break the bead so easily when running low air pressure vs the 10 wheel.
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Old 01-17-2014, 05:43 PM   #26
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Yes you can put 20's on your CJ, my friend has some on his.



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Old 01-17-2014, 06:07 PM   #27
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Stick with 15" or 16" wheels, you'll be happy you did in the long run. If you really like the look of the 20" wheels, put them on a 2 wheel drive suv so nobody will make fun of you.... Just my opinion.

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