How would I find out what lift I have on my Jeep Wrangler TJ?

Michaelp3257

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I looked up the rear shocks that are on my Tj and ranchos website says they are 3.5 inches. Does that mean my lift is also 3.5 inches? Secondly are the rear coil springs significantly shorter than the front coil springs.
 
Factory Height on the springs should be
12" on the rear
8" on the front
Measure them and anything above that would be how much lift you have.
 
Thank you! I actually was just able to find the thread explaining this! It says 12 inches in the front and 8 in the rear on that thread, do you know if you just mixed those two up or are the others incorrect?
Also the shock length will correlate with the lift correct? I.e a 3.5 inch lift will require 3.5 inch shocks?
 
Thank you! I actually was just able to find the thread explaining this! It says 12 inches in the front and 8 in the rear on that thread, do you know if you just mixed those two up or are the others incorrect?
Also the shock length will correlate with the lift correct? I.e a 3.5 inch lift will require 3.5 inch shocks?

Yes, the shock length, as advertised, should correlate to the amount of suspension lift.
 
Yes, the shock length, as advertised, should correlate to the amount of suspension lift.

Assuming they are the right shock. We all know that particular measurement can be troublesome.

Measure the springs and go from there.
 
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H
Assuming they are the right shock. We all know that particular measurement can be troublesome.

Measure the springs and go from there.
should I expect any sag when measuring the springs-to the best of knowledge these springs have been on there for at least 15 years
 
H

should I expect any sag when measuring the springs-to the best of knowledge these springs have been on there for at least 15 years

Measuring the springs will provide a measurement. The springs (and spacers) will tell you the lift height, if any. The shocks roughly correlate to a lift height, but they do not determine it.
 
H

should I expect any sag when measuring the springs-to the best of knowledge these springs have been on there for at least 15 years
Yes, some sag. Just go measure, then you’ll know the actual lift height. Springs provide the lift height. Then you buy a shock to match that lift height. Report back
 
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So after measuring front and rear springs- I got 15 on the front not including what I believe is a coil spacer, if I include that coil spacer I get 15.5 inches which would imply a 3.5 inch lift correct?
The back I got 10 inches minus 8 inches is 2”. Is this normal or should both front and rear be the same, not familiar with leveling kits in jeeps. I attached photos of where I measure from and what I believe is the coil spacer. You guys have been tremendously helpful!

E0E91C98-96B4-44D9-B72D-197005295DEB.webp


BC469B0F-78B3-4923-A7B3-9622DC6E1BFE.webp


C34C31D1-8C8B-4542-9F4E-FC938E7A11CB.webp


20CF16BF-3BC4-4E6B-8085-476155AA2CF5.webp
 
No spacers. Those are the stock isolaters. 3" front, 2" rear lift is relatively common.
 
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Change of topic(ish) if wanted to go 3.5 inches of suspension lift all the way around. Would I need to get 3.5 inch springs for front and rear or would having the 3.5 inches of spring in the rear create a front rake ?
 
Change of topic(ish) if wanted to go 3.5 inches of suspension lift all the way around. Would I need to get 3.5 inch springs for front and rear or would having the 3.5 inches of spring in the rear create a front rake ?

Small spacers are fine to use for small adjustments.

If you want 3.5" all around, the rear would end up an inch higher relative to the front than it is now. Rake is not a bad thing.
 
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Awesome! Going through the lift kit for beginners guide that @Chris posted. I would ultimately like to do 3.5 inches of suspension lift. Then maybe like .5inch to 1inch of body lift. I read it’s not good to go past 1inches of body lift because you’re not gaining ground clearance just tire clearance.
so with 3.5 inches of suspension lift I would have todo an SYE kit, rear shock location brackets, adjustable track bar, and possibly adjustable control arms? Advice on this would be appreciated. I still drive the Jeep to work which is only 3 miles, wanting to build it and get it more prepped for wheeling. Thankyou!
 
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1.25" body lift is a nice size and very useful beyond tire clearance. Make sure the pucks are a rigid non-compressible material. No polyurethane, no durathane.
 
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Awesome! Going through the lift kit for beginners guide that @Chris posted. I would ultimately like to do 3.5 inches of suspension lift. Then maybe like .5inch to 1inch of body lift. I read it’s not good to go past 1inches of body lift because you’re not gaining ground clearance just tire clearance.
so with 3.5 inches of suspension lift I would have todo an SYE kit, rear shock location brackets, adjustable track bar, and possibly adjustable control arms? Advice on this would be appreciated. I still drive the Jeep to work which is only 3 miles, wanting to build it and get it more prepped for wheeling. Thankyou!

Lift height should be determined after you first figure out what size tire you plan to run. The entire build should focus around what size tire you're running and what your plans are for the Jeep in terms of how you want to use it.

I wouldn't waste my time with a 1/2" body lift personally. I'd skip right to the Savvy 1.25" body lift and call it a day.
 
Lift height should be determined after you first figure out what size tire you plan to run. The entire build should focus around what size tire you're running and what your plans are for the Jeep in terms of how you want to use it.

I wouldn't waste my time with a 1/2" body lift personally. I'd skip right to the Savvy 1.25" body lift and call it a day.
Awesome! I plan on running 35’s eventually as of know I have 33s. Based off of your lift kit guide I would need 5 inches of total lift to utilize 35s full potential. With 3.5 inches of suspension lift and the 1.25 inch savvy body lift you referred to, would not having that quarter of an inch affect my ability of using the 35s full potential? Also could I make up for that quarter of an inch by running some form of flat or high line fenders?
 
1.25" body lift is a nice size and very useful beyond tire clearance. Make sure the pucks are a rigid non-compressible material. No polyurethane, no durathane.
Awesome, based off yours and @Chris response I will probably just go straight to 1.25” body lift. Do you know if there was anything I left out on the list I made for the 3.5 inch lift requirements? And are adjustable control arms required?
 
Flat fenders that are not highlines do not create clearance. Adjustable arms and a double cardan rear drive shaft are required.

That missing fraction of an inch isn't absolutely required, but it will be appreciated once you start fitting pieces together.

There is a how to thread for 35s. It's a good starting point.
 
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Awesome! I plan on running 35’s eventually as of know I have 33s. Based off of your lift kit guide I would need 5 inches of total lift to utilize 35s full potential. With 3.5 inches of suspension lift and the 1.25 inch savvy body lift you referred to, would not having that quarter of an inch affect my ability of using the 35s full potential? Also could I make up for that quarter of an inch by running some form of flat or high line fenders?

So if it was me and I wanted to run 33s, I would go with a 4" suspension lift and a 1.25" body lift, or you could omit the body lift altogether if you have no plans to tuck the transfer case and underside eventually. But, if you plan to tuck it at some point, you'll want that body lift. Not to mention the body lift does provide the ability for additional up-travel, which isn't a bad thing by any means.

Some might say do a 3" suspension lift and a 1.25" body lift (since you technically only need 4" of lift for 33s), but I would disagree with that only because the lift options for 3" are fewer and far between. You'll find many, many more options for 4" lift springs than you will for 3".

4" of suspension lift is kind of a gold standard for TJs I'd like to think.
 
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