Fitting larger spare in stock location, with pictures. - JeepForum.com
 
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post #1 of 8 Old 01-19-2010, 11:28 PM Thread Starter
Pac Man
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Fitting larger spare in stock location, with pictures.

I purchased 5 Bridgestone Revo 2's in 255 70 17. I also Purchased 4 AEV pintler wheels in argent and the OME medium duty lift. I've gotten everything but I'm still waiting on the springs from Australia.

In the meantime I've gotten the tires on, and while I'm waiting for the lift I've decided to do a quick write up on fitting an oversized spare. Keep in mind this will fit a 255/70/17 Revo 2, I'm not sure about others.

First things first, here are some before and after pics:

Before (actually 2 years before):



After (yes, its an iphone pic):





Slightly off topic: Pretty darn close to that pinch weld, but it seriously dosen't hit; at all.



The rear:



Ok, Moving along. I have a trailer hitch. The tire shop that installed them said my spare fit up in the spare tire well but it was tight. Obviously I was apprehensive. On my drive home I heard all kinds of racket and moaning and groaning from underneath the car. I backed into my garage, turned the heat on, and crawled under the car.

The spare was barely up in the well. The hitch bolts tore a lug off and everytime the car moved the tire would sway under the car; hence the groaning sounds i heard.

Ready to get to work:



Here is the spare mounted up:



These are the things you will need: An angle grinder, An angle cut-off tool, a face mask, and some rustoleum black enamel. Also not pictured: A tube of grease and a small screwdriver to pop the trailer hitch connector off (to avoid cutting it while grinding). Also, some halogen shop lights under the car make things easier.



Here is the problem: The 4 bolts sticking through the back of the hitch and the excess metal on the back of the hitch itself. We need to cut the bolts off flush with the nuts and cut an inch or so chunk of that trailer hitch off.



Surprisingly my $20 harbor freight 4.5" electric Angle grinder with a cut off wheel made fairly short work of all that steel. It probably took me 20 minutes and two discs to cut through all that. Here are all the hitch bolts cut and half the trailer hitch cut. Due to the angles you will be working at, you have to cut off the hitch like this, then go at it again to get the rest.



I also have a 4" harbor freight angle grinder with a thick grinding wheel on it that is meant to grind, not cut. You have to go over everything you have sliced off with the grinder to get rid of its razor sharp edges. You could probably use a Dremel tool or even a file if you wanted too. If you don't do this, guess what will happen to your tire. All cut and then smoothed up:



Wipe everything you were touching on the hitch down with rubbing alcohol, spirits, nail polish remover, hell even soap and water will work. I then put on 2 coats of rustoleum enamel.



Even with the hitch and bolts ground down, the fit is extremely tight. The tire will still contact the crossmember behind the axle and the rear hitch NUTS. It will be possible to get the tire up there, but if you want the tire to be SEATED in the well properly, you need to use a liberal helping of grease. Once dry rubber hits that metal, no amount of persuasion will get it up into the well. If it's greased, that a different story. You have to grease the rear cross member (as you can see in the pics) and ALSO the trailer hitch and the hitch nuts. You can see where I am greasing the cross member here. Grease everything in the colored circles.




When you are cranking the spare up and it gets close to the top pull the trailer hitch side (or rear most side) of the tire up first, then keep cranking and the back of the tire will pull itself up. you will feel some resistance when it hits the crossmember, but if you greased it properly it should pull through. You may need to wiggle it around a bit or crank the tire up slowly to get it to seat up in the well. When it's fully seated you shouldn't even be able to wiggle it even slightly with your hands. Mine is rock solid.



Although it doesn't look like it in this pic, the trailer hitch nuts ARE touching the tire. That is why it is important to feed the rear up first. It's easier to pull the front (cross member side) up because the tread voids are not getting stopped from being pulled up by the nuts.



I'll get some better pics of the tires up in the wheel and tire thread when it's light out. They look a hell of alot bigger than the stock 245 65 17 forteras, but I'm wondering if maybe the wheels make them look bigger...


2007 Black Grand Cherokee
Hemi - QDII - OME - S4XC Hidden Winch Mount -Talon 9.5SR - Full Matrix - 265/70/17 Duratrac's - Pintlers- Superchips - Magnaflow - Airaid - 5000k HIDs - Lightforce HID's - 4xG Front Guard - 4XG Diff Cover
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post #2 of 8 Old 01-20-2010, 08:15 AM
Fizzle1979
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Nice work!

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post #3 of 8 Old 01-20-2010, 08:25 AM
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Great post!, thanks for the tip!
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post #4 of 8 Old 01-20-2010, 09:11 AM
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Nice write up.

265/70-17 BFGoodrich All-Terrain T/A KO, 2" lift, JK Wrangler Moab wheels, Spidertrax Spacers, Rola Roof Rack.

Last edited by Texas WJ; 01-21-2010 at 08:46 PM.
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post #5 of 8 Old 01-21-2010, 01:14 AM Thread Starter
Pac Man
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thanks for the complements! I know all tires meed to be within 3% of each other with QD2 so I needed a full size spare. I think the difference between my new tires and the stock 245's is over 5%

2007 Black Grand Cherokee
Hemi - QDII - OME - S4XC Hidden Winch Mount -Talon 9.5SR - Full Matrix - 265/70/17 Duratrac's - Pintlers- Superchips - Magnaflow - Airaid - 5000k HIDs - Lightforce HID's - 4xG Front Guard - 4XG Diff Cover
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post #6 of 8 Old 01-21-2010, 07:09 AM
thecommander
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just wait until dirt gets up in that grease. and when the time comes that you have to change a tire you will be covered in grease.

other then that! good job.

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post #7 of 8 Old 01-21-2010, 07:45 PM
gornoman
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Perhaps a liberal coating of liquid soap instead of grease?

Great write-up!

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post #8 of 8 Old 01-21-2010, 11:03 PM Thread Starter
Pac Man
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Quote:
Originally Posted by thecommander View Post
just wait until dirt gets up in that grease. and when the time comes that you have to change a tire you will be covered in grease.

other then that! good job.
lol, that will be the least of my problems if I blow a tire. Besides I keep a towel and some hand wipes under the floor in the cargo area.

Quote:
Originally Posted by gornoman View Post
Perhaps a liberal coating of liquid soap instead of grease?

Great write-up!
bad idea- remember with the tire up there tightly you want it to come out easily if you are stuck on the side of the road with a flat.

2007 Black Grand Cherokee
Hemi - QDII - OME - S4XC Hidden Winch Mount -Talon 9.5SR - Full Matrix - 265/70/17 Duratrac's - Pintlers- Superchips - Magnaflow - Airaid - 5000k HIDs - Lightforce HID's - 4xG Front Guard - 4XG Diff Cover
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