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Old 04-15-2010, 08:32 PM   #1
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Suspension lift - metal vs. polyurethane coil spacers

Been looking at some leveling kits for awhile, trying to make up my mind which way to go......

All I want, for now, is a 2.5" suspension lift utilizing coil spacers. I've seen brands that offer metal spacers, and other brands offering poly spacers.

Can anyone give me some insight on which way to go? I mean, what are the pros and cons of each type? I have no intention of replacing any OEM shocks, hardware, or components at the present.....unless of course, I end up having to.

I plan to purchase a kit within the week.....any and all input will be greatly appreciated!!!

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Old 04-15-2010, 08:58 PM   #2
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2.5" is more than a leveling kit. I would think that you would need extensions for your shocks at the very least. If you have the stock hydro shocks, I think you'd be in for a poor ride by having a 2.5" lift and not upgrading them.

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Old 04-15-2010, 09:08 PM   #3
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To level the JK "unlimited" just a .5/.75" spacer IN FRONT is all you need

I have a RC 2.5" lift BASIC--just the powder coated (STEEL) spacers and I consider them to be superior to any plastic/rubber spacers

Since I already have Rubi springs I didn't need any more than the spacers, I also changed shocks, there was nothing wrong with my Rubi shocks, but I put in RC9000XL adj. shocks--very much more control of the body lean and bump handling !!

Good luck

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Old 04-16-2010, 12:33 PM   #4
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You WILL want to replace some hardware and components at 2.5" of lift. The OEM sway bar links are not long enough to maintain even decent geometry at this height. Also, you MAY see some rear brake line stretch at this height without brackets.
Going cheap on modifying a vehicle you drive (assumedly) daily is NEVER a good idea. I HIGHLY recommend (if money is the limiting factor here, as it usually is), saving up, and doing it right one time- Mark W.
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Old 04-16-2010, 07:06 PM   #5
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Thanks for all the input!

A good friend of mine has a 2dr Sahara, and he just had a 2.5 lift installed on his....all the way around. According to him, the only components used were the 4 coil spacers. No new shocks, no linkages, nothing.

BUT.......he wasn't present to see how and what went into the whole lifting process.

Every leveling kit I have found offers spacers for the front at one size, and spacers for the rear in another size. Shock relocation brackets, and longer sway bar linkages. So, I kinda questioned how accurate the above statement was.

Whaddya think about a TeraFlex leveling kit with 2" spacers in the front, and 1" spacers for the rear....and.....longer sway bar links?

Lastly, pertaining to my original question......which is better, steel or poly spacers?
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Old 04-16-2010, 07:22 PM   #6
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Well, which do you think would degrade the fastest ???


Poly/rubber/powder coated steel--

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Old 04-16-2010, 07:45 PM   #7
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JIMBOX

You have a good point there.

The reason for my being perplexed about the issue, is because I have one shop telling me that the poly spacers are better because they offer a smoother ride, and the steel ones will start to squeek after awhile. Then, I have another shop telling me the poly ones will degrade over time, therefore, the steel ones are the better choice.

All I want is to level the rig out and maintain some sort of ride similar to what I have now. I'm limited with lift height because of my garage doors, so, I don't want to go too high. My next step is to upsize to 275/70-18 tires with some aftermarket wheels, and I want to be good with clearance with the new shoes.
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Old 04-16-2010, 07:54 PM   #8
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I would go with the steel myself. That said I am looking at some 1" spacers on Ebay and wondering if I will need to replace shocks or anything else if I do a 1 inch spacer lift? I just want a bit more room for my 32's to flex.
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Old 04-16-2010, 07:56 PM   #9
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Quote:
Originally Posted by RT0870 View Post
JIMBOX

You have a good point there.

The reason for my being perplexed about the issue, is because I have one shop telling me that the poly spacers are better because they offer a smoother ride, and the steel ones will start to squeek after awhile. Then, I have another shop telling me the poly ones will degrade over time, therefore, the steel ones are the better choice.

All I want is to level the rig out and maintain some sort of ride similar to what I have now. I'm limited with lift height because of my garage doors, so, I don't want to go too high. My next step is to upsize to 275/70-18 tires with some aftermarket wheels, and I want to be good with clearance with the new shoes.
You will still have to reuse the coil "Isolators", no matter what you use as spacers and they will eliminate any squeeking !!

Course they are made of VERY hard rubber and probably have a 25 yr life span, before "aging"- I'm just guessing on that, but I've seen 15 year old ford isolators and they're uncracked !!

I suggest steel !!

If you get RC, be careful of any "DEAL", where they include shocks, I've heard that the shocks are poor quality--buy shocks seperate--I did

Good luck

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Old 04-17-2010, 10:01 PM   #10
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I'm with JIMBO. I went with the Rough Country series II spacer lift for a couple reasons.

1 - It's steel so no chance of cracking.

2 - It levels the factory rake by lifting the front a bit more than the rear.

3 - Best reason of the three... It's half the price of the poly/rubber spacer lifts! $174 shipped.


I have had it on for about a week with no problems with squeaks or anything. I recommend spending the extra $50 for series II kit since it comes with shock extension brackets and rear track bar relocator. You maintain your factory ride this way since you don't replace shocks. Got mine for $174 shipped to my door from RC direct.
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Old 04-18-2010, 08:12 AM   #11
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Thanks again for all the input......

One thing came to me last night that has me wondering. When I install the spacers, will it have an affect on my OEM wheel/tire combo? I mean, just by going up 2.5" max in the front, will it cause the wheels to draw in under the fender more, thereby putting them closer to the body and components?

If I have my head on straight, it shouldn't affect any of that because the spacer is on TOP of the spring, pushing the body away from the ground more, not the axle and suspension. But, that's why I'm asking here.....you guys are a LOT more experienced than I am.

I hate to have to use wheel spacers, and I'm not quite ready to go for an entire new 5 wheel/tire package.
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Old 04-18-2010, 08:51 AM   #12
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No it won't change your "track", but if you go to larger/wider tires and keep your front STOCK track bar, you may have some rubbing against the swaybar--


Now, remember, every jeep is a little different, so each case has to be analyzed !!

If you keep your stock wheels/tires, no problemo, but when you put on bigger/wider tires, you have to either get wheels with 4.5/4.0" Backspace or use adapters/spacers-or both if it's extreme

I have wheels that have 4.5" BS, but I still use adapters so my tires are even (verticaly) with the edge of the fenders, wider track/no rub/LOOKS !!

Quote:

Good luck

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Old 04-18-2010, 09:17 AM   #13
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I put 295/70/17's (33.25 x 11.5) on my stock wheels (no spacers) with a 2.5" lift and I don't have any rubbing. I haven't taken it off road yet but around town I'm fine.
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Old 04-18-2010, 09:18 AM   #14
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JIMBOX:

Sweet rig ya got there!

Great! That helps me out a lot. I'm actually kinda fond of the stock wheels. But, I'm not so fond of how the set sits under the fenders. I want exactly the same as you, wider tires, but not sticking out past the fender lip.

What I plan to do, is upsize the stock tires from 255/70-18 to 275/70-18, and keep the stock wheels. OMF offers a service where they will put simulated beadlock rings on most any wheel. I came across this picture one eve, and this is what I'm gunning for:

http://www.wranglerforum.com/gallery...mageuser=19252

Sorry....don't know how to get the pic up yet....
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Old 04-18-2010, 09:26 AM   #15
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Quote:
Originally Posted by RT0870 View Post
JIMBOX:

Sweet rig ya got there!

Great! That helps me out a lot. I'm actually kinda fond of the stock wheels. But, I'm not so fond of how the set sits under the fenders. I want exactly the same as you, wider tires, but not sticking out past the fender lip.

What I plan to do, is upsize the stock tires from 255/70-18 to 275/70-18, and keep the stock wheels. OMF offers a service where they will put simulated beadlock rings on most any wheel. I came across this picture one eve, and this is what I'm gunning for:

Nice Rig - Wrangler Forum Gallery

Sorry....don't know how to get the pic up yet....
Love his rear bumper. Not a huge fan of the bead lock look on factory wheels. Just my opinion though. One thing to keep in mind when you go to modding is at the end of the day the only opinion that matters is your opinion since you are the one driving it everyday.
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Old 04-18-2010, 09:39 AM   #16
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It looks like they are about 1/2" wider and 1" bigger in diameter,
so it doesn't look like any problems, but

After install. you'll have check your front bumperswaybar for cl on full right/left turns and measure the ACTUAL height of the tires !!

You may NEED adapters/spacers anyway, but you will have to check-good luck


I kinda like the look of those beadlocks !!

JIMBO

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