Lifting LJ: Looking for thoughts on my setup

06lj said:
I'm curious if this actually works with 2.5" lifts without interference? The only two I was able to confirm were the JKS and Metalcloak. If if works it might be a good budget option for others.
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Yes. I have an OME 2 1/2" lift on mine. I have no clearance issues at all. And the ability to adjust the bar all the way at the frame side puts both alignment adjustments right next to each other. Not a big deal, but my OCD likes the neat arangement.
 
freebo86 said:
The 931s are only rated to 40KG per the ARB site.
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The 931 is longer than the 933. Lift height is the result of both the rate and the length acting against the weight of the Jeep. You need to look at both numbers.
 
jjvw said:
The 931 is longer than the 933. Lift height is the result of both the rate and the length acting against the weight of the Jeep. You need to look at both numbers.
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Where is the length listed on that site? I do not see a length of the spring shown at all. Just says that 2931 is suited for 6cyl engine, while the 2934 is for 8cyl.. Both listed under the ZJ.
 
freebo86 said:
Where is the length listed on that site? I do not see a length of the spring shown at all. Just says that 2931 is suited for 6cyl engine, while the 2934 is for 8cyl.. Both listed under the ZJ.
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The catalog lists the free lengths in mm if I recall. ZJ front coils fit the TJ, XJ, MJ, JK and vice versa.
 
freebo86 said:
I don't see this. I see the estimate lift height at 50mm but that also lists it for the 2933
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The lift height is a guess, no matter who it comes from. You are looking for the free length. It is there in the catalog because that is where I got them from. OME fronts are in the 530mm territory.
 
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jjvw said:
The lift height is a guess, no matter who it comes from. You are looking for the free length. It is there in the catalog because that is where I got them from. OME fronts are in the 530mm territory.
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Your right just found it, was the very last page.. Looks like the 2931 and 2934 are same free height of 510. 2931 being a heavier coil.. different spring rates 140 vs. 160
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While I wait for the lift I swapped the tires over into my rims. It sure is stuffed! Took it for a drive overall the Jeep seems smoother on these 33s than my 31s.

It does rub on full turn down ad the control arm so I’ll have to adjust the wheel stops regardless of lift, I assume?

I will say, now 1st gear is actually useful.

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freebo86 said:
It does rub on full turn down ad the control arm so I’ll have to adjust the wheel stops regardless of lift, I assume?
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I think most people end up with wheel spacers when they run 33" tires on stock rims. The washer advice is normally given to people running 31" tires if they have a little bit of rubbing.
 
Any chance someone can explain the bump stops to me and what guys use. I am finding some using pucks some say not too etc.

Do I need these extensions at the top and bottom on the front and rear coil buckets? Do I extend just from either the top or bottom? Completely lost on this and can’t seem to find much info on what to use. Looking at ordering something in 3” length and then cutting down amazon has these but I’m not sure if these work for front and rear or just one end?

Rubicon Express RE1395 Upper Bump Stop for Jeep TJ https://www.amazon.ca/dp/B006GJM2FK/?tag=tjforum-20
 
Look in the "How To" section below this "General" section in the home page. There are several excellent write-ups on how to cycle the suspension and get your bumpstops set correctly. Plus a host of other info that you will use too.
 
Is there a top vs. bottom on the OME coils? Looking at the rears and I can’t see a difference in either end.. I know bmws have a top vs. Bottom.

Also, what can be used besides hockey pucks for bump stops that don’t cost a fortune? The pucks don’t fit inside the coil opened at the top end the coil wrap is too tight to go around the puck..
 
freebo86 said:
Is there a top vs. bottom on the OME coils? Looking at the rears and I can’t see a difference in either end.. I know bmws have a top vs. Bottom.

Also, what can be used besides hockey pucks for bump stops that don’t cost a fortune? The pucks don’t fit inside the coil opened at the top end the coil wrap is too tight to go around the puck..
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Don't think it matters on the rears. For the bumpstops in the rear, you could unbolt the upper jounce bumper steel cup, get a longer bolt, then add some HD 1/8" washers to your desired bumpness. Or, drill/tap the lower spring pad and add a hockey puck on the bottom.
 
bobthetj03 said:
Don't think it matters on the rears. For the bumpstops in the rear, you could unbolt the upper jounce bumper steel cup, get a longer bolt, then add some HD 1/8" washers to your desired bumpness. Or, drill/tap the lower spring pad and add a hockey puck on the bottom.
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The opening on the coils is the same top or bottom. Also rear bump stops should be at top on the rear. Would take a lot of washer to get 2” thickness.. I already have a longer bolts that’s not the problem, it’s the puck fitting into the coil. I can’t get the coil all the way up to rest against the perch due to diameter of puck

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freebo86 said:
The opening on the coils is the same top or bottom. Also rear bump stops should be at top on the rear. Would take a lot of washer to get 2” thickness.. I already have a longer bolts that’s not the problem, it’s the puck fitting into the coil. I can’t get the coil all the way up to rest against the perch due to diameter of puck

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OME makes some 1" aluminum spacers that work on the uppers.
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Also, you'll notice that the lower spring pad has a raised section where the small coil recesses in. Add the puck on top of that if you want to add from the lower pad. You'll obviously need to have the spring installed and extended so you can sneak the puck between the coil windings in order to bolt it down to the lower pad. Honestly, it's just easier to get the upper spacers and add from top. If it were the front coils, then you'd want to add bump from the bottom due to how much the front coils arch on articulation.
 
freebo86 said:
I’m gonna grab some aluminum bar tmr and that should do it.

The coils are labeled A and B which is which? One is taller than the other also..
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TJ's tend to lean low on one side. Measure ahead of time to see which side is lower and use the taller spring for the low side.
 
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