CJ5 no tailgate spare tire mount - JeepForum.com
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post #1 of 9 Old 07-13-2020, 12:07 AM Thread Starter
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CJ5 no tailgate spare tire mount

Hi all, I have a new to me '79 CJ5 with a swing out spare tire/jerry can carrier and no tailgate. I took the swing out carrier off because I don't like how far the spare hangs out with it on, and since I don't really need a swing out tire carrier without a tailgate, I've been looking into mounting options for mounting the spare directly to the tub. I'll probably hang onto the jerry cans/carrier for future trips, but right now would rather have just a spare back there.

Has anyone else done something similar? What did you use? Most everything I've seen has a normal swing out tire carrier that either mounts to the tub (like mine) or to the rear bumper. The bumper that's on mine now is pretty solid (doesn't have tow hooks or d-rings though) so I figured I'd explore options before just buying a tire carrier bumper. I've seen the side mounts used for older CJs, but don't think they would extend far enough out for the bigger tire.

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post #2 of 9 Old 07-13-2020, 12:36 AM
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1979 CJ5 
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There are other manufacturers of Jeep CJ rear bumper/spare tire carrier combinations where the spare sits much closer
to the Jeep body. Maybe you could modify your existing carrier to move the spare closer to the Jeep body.

I wouldn't recommend mounting a spare tire carrier to the rear panel, especially if you are running larger than stock tires.

The weight of a 31X10.50 tire with a 15X8 steel wheel with the factory carrier will place a strain on the rear steel panel and
cause an " oil canning " effect eventually cracking the metal. Here are a couple bumper/tire carrier combos for comparison:


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post #3 of 9 Old 07-13-2020, 02:18 AM
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CJ5/6 could have it mounted on a bracket direct to the tailgate or on the side of the tub. The later Wrangler had it bolted to the rear door.

I share Hurricane's concern that the rear panel be strong enough to hold it but I would bolt through and add a metal bar behind from top to bottom. The Wrangler spare wheel bracket cannot be very expensive off eBay and it is a flat faced 4 bolt job. If you sandwich the panel and spread the stress it will work up to a level.

My Willys has it bolted through the tailgate, 70 years and no signs of cracking. The jerrycan is bolted to the back, Jeep used to sell a 5 gallon can for severe duty overseas market jeeps but you can get them from the hardware shop. I would offset the spare if I was starting from scratch.
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post #4 of 9 Old 07-13-2020, 02:34 AM
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You can always install a factory spare tire carrier that the rear panel was designed for and are available often on eBay. But backing plates on the inside of the rear panel are almost always a must on any size tire larger than stock.

Ebay has several for sale and one can be seen here with detailed pictures: https://www.ebay.com/itm/Jeep-Cj5-76...sAAOSw6ahezVsE

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post #5 of 9 Old 07-13-2020, 07:31 AM
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you could always add a tailgate to your 5.

Submariner and you wonder why I am this way LOL
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post #6 of 9 Old 07-13-2020, 09:44 AM
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1983 CJ5 
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Mine is bolted with two hot dipped galv carriage bolts through the rear fixed body support. No tailgate on mine either. I know a backing plate would be 'proper', but this has been this way for 20 years... The spare is a 31x10.5.
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post #7 of 9 Old 07-13-2020, 10:45 AM
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After a couple of oops with a side mounted spare I moved the bracket to the tailgate. It was pretty warped anyway so I opted for function instead of fashion. Normal flat washers are the only reinforcements used. I did use a 3/8" eyebolt and nut for anchor point for a security chain. Wheel is a 8X15 and tire is a 31--dang heavy to lift on the mount unless I use a tire tool under it on my receiver hitch. After almost 4 years It shows no evidence of failing.
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post #8 of 9 Old 07-13-2020, 12:28 PM
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I dont have a picture handy, but I got a generic trailer "spare tire" carrier. You can find them everywhere (ie walmart, parts places). I found a beefy one ($20), and bolted it to a piece of heavy steel, which I then welded to the rear bumper. That was about 10 years ago, and its still holding the 31" tire just fine.
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post #9 of 9 Old 07-13-2020, 09:58 PM Thread Starter
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Thanks all for the suggestions! I'll post in here when I get around to installing the spare. Sounds like it might not be absolutely necessary, but if I go with mounting the spare directly to the tub I'll definitely add a backing plate to help keep from bending up/cracking the body.
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