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How to Install a Polyurethane Lift Spacer Kit on a Jeep Wrangler JK

Updated on July 9, 2014

What you will need to do this install.

A list of items you will need to do this installation properly.

  1. A good set of hand tools including wrenches, sockets, and various sized socket heads.
  2. A heavy duty floor jack and jack stands.
  3. Lug wrench to remove wheels and tires.
  4. A roll around stool or something to sit on.
  5. Coil spring compressor.
  6. Penetrating spray.
  7. Lots of towels or shop rags.
  8. Mechanics gloves to prevent damage to hands.
  9. A spacer lift kit and these instructions.
  10. A radio capable of playing your favorite awesome tunes.
  11. Lots of your favorite beverage.
  12. And a ham and cheese sandwich or other favorite snack.

Get your Jeep Wrangler JK out of the weeds and learn how to install a lift kit!

The Jeep Wrangler JK comes from the factory a little to low to the ground for my taste. Then if you try to add bigger tires you wont be able to make a u turn or even a sharp turn for that matter without your tires rubbing and making an awful noise. But you need bigger tires to look good.

So why not add a small lift and get the tires you want and have a Jeep that looks like its ready for any Zombie apocalypse. If you think you can't install a lift because its to hard well think again. If I can do it, then anyone can.

So here is my tutorial on how to install a polyurethane front and rear spacer kit on your Jeep Wrangler JK.


Watch this Video Before you Install.

A Lift Kit Helps When Going Off Road

Installation of the front spacers...

1. First lets do the front axle. Loosen all of the lug nuts on two front wheels. And jack up the vehicle by the pumpkin. Then put jack stands underneath the axle on each side. We will do one side at a time.

2. Remove the wheels from one side only and set on the ground so you can sit on it. Next remove the bottom shock bolt and the shock mount. Next remove the end link at the bottom mount so the sway bar is disconnected.

3. With those two disconnected you can remove the jack stand under that side of the axle and slowly lower the pumpkin where the jack is holding it up until the one side drops enough to remove the coil spring.

4. Once there is enough space to remove the coil spring take it out noting the orientation. If it cannot come out then use a coil spring compressor. If you don't have one then you can rent one for free at a local auto parts store.

5. Next remove the coil spring isolator and install the spacer over that isolator or discard if you don't want to use. It is up to you. Using the isolator may give additional lift height and a smoother ride.

6. Next install the spacers over the coil spring on the top of the coil spring and reinstall the coil spring assembly making sure it seats properly.

7. Then jack up the axle under the pumpkin and reconnect the end link first. Then the lower shock mount. Make sure the coil spring is seated properly and the spacer is sitting correctly on the top of the coil spring.

8. Reinstall the jack stand under the axle, and put the tire back on with the lug nuts loosely tightened.

9, Repeat this same process for the other side.

10. When both sides are done, make sure both tires are installed, remove the jack stands and lower the vehicle. Tighten all the lug nuts in a star pattern and inspect the lift. Everything should set level with no pinching on the spacers or one side uneven.

NOW proceed to the rear installation part of these instructions.

A Lift Kit is Needed for Bigger Tires

Installation of the rear spacers...

1. Loosen all the lug nuts on both wheels before you jack up the vehicle. Jack the vehicle up at the pumpkin high enough so you can drop one side of the axle to remove the coil spring. Put jack stands on both sides under the axle near the wheels.

2. Again we will do one side at a time. Remove the wheel from one side and lay it on the ground in front of the axle so you can sit on it. Then remove the track bar on one side (this is optional but it may be easier to install the spacers).

3. Remove the bottom mount of the shock and remove the end link from the sway-bar so the axle can drop. The bottom should be enough but it may take top and bottom on the end link.

4. You may also need to remove the brake line frame clamp where the brake line is held to the frame so you can properly lower the axle.

5. Next remove the jack stand on the side you are working on and drop the axle until the coil spring is able to be removed. PLEASE NOTE: keep an eye on the emergency brake lines and the main brake line. Do not stretch them to the point they will break. If you need to use a coil spring compressor I would do so.

6. Once the coil spring is removed you will install the spacer over the isolator if desired and install that on the top of the coil spring. Reinstall the coil spring onto the axle. It may take some doing to get it back in and you may need to use the coil spring compressor or two people but it should go back in.

7. Once it is back in, jack up the axle and put the stand underneath the axle. Re-attach the end links, lower shock mount, and the brake clamp. You will do the trackbar after you finish the other side. Put the wheel back on and install the lug nuts only hand tight.

8. Repeat this process for the other side. It will be much easier now that you know how it is done.

9. Once you have both sides done, and have the wheels on you can reinstall the track bar. It is the easiest to lower the vehicle onto the ground and reinstall it but you can try while it is in the air. Once you are ready remove the jack stands and lower the Jeep. Install the track bar if you did not do it previously and tighten all the lug nuts in a star pattern.

10. Check the lift and make sure everything is connected and tightened both front and rear. Then if everything is correct and the lift looks even take it for a test drive. After 50 miles recheck the bolts and tighten as needed.

This is stock with no lift! Before Picture!

And After with Lift Kit & New Fender Flares Allows for Bigger Tires

This has 1 Inch Lift Spacers on it with the stock coil spring isolators still on it.
This has 1 Inch Lift Spacers on it with the stock coil spring isolators still on it. | Source

Whats the first thing you should do to your Jeep Wrangler JK?

See results

This guy got a soft top and took the doors off!

So What are you Waiting For

So if you need a great lift kit to get bigger tires and wheels underneath your Jeep Wrangler JK then you should go for it. Because now you know how to install them and you can get a new lift kit for around $100.00 and have it installed by the weekend.

Then take your rig and go off-roading with your new found height and increased tire size you will be able to conquer trails you could only dream of with your stock Wrangler.


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