Talk to a Wrangler Sales Tech
1-877-870-8556
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Logo Image
$20K Sweeps! 10 Chances to Win! Enter Daily >

How to Install Poison Spyder RockBrawler II Hi-Lift Jack Mount - Bare Steel on your 07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL

Installation Time

30 minutes

Tools Required
  • Primer, paint, cleaners (if painting)
  • 9/16” end wrench, socket and ratchet
  • 3/4” end wrench or socket and ratchet (optional)

The Poison Spyder Customs RockBrawler Hi- Lift Jack Mount is designed to easily mount a Hi- Lift jack to the spare tire rack on a Poison Spyder RockBrawler Rear Bumper. It is easy to install with the right tools and good mechanical abilities. If you are not confident in your mechanical skills, please seek the help of a professional to perform the installation. Please read through these entire instructions before proceeding with installation.

PARTS LIST

(1) RockBrawler Hi-Lift Jack Mount Plate
(4) Urethane Bushing
(2) 1/2-13 X 3” Carriage Bolt
(2) 1/2” Pushnut Bolt Retainer
(2) 1/2-13 Wing Nut
(2) 1/2-13 Nylon Insert Lock Nut
(4) 3/8-16 X 1” Gr8 Hex Head Cap Screw
(4) 3/8-16 Nylon Insert Lock Nut
(8) 3/8 Flat Washer

BEFORE YOU BEGIN

If your RockBrawler Hi-Lift Jack Mount came as unpainted, bare steel, you will want to either powder coat or paint the it prior to install. If painting yourself, careful preparation will make a big difference in the quality and longevity of your paint job, even using “rattle can” aerosol paints. Begin by thoroughly cleaning the bumper with solvent or de-greaser, then make sure all residue is removed. Even if you use cheap paint, try to use a good quality primer. “Etching” primers are best to use on bare, unpainted metal. Allow it to properly dry before painting, and between paint coats.

Note that you must already have both a RockBrawler Rear Bumper with Tire Carrier and a Hi-Lift jack. The Jack must have the lifting mechanism at the bottom of its travel, with the handle locked into place. The handle must be secured by some mechanism such as the urethane jack handle isolators that are available at most 4X4 shops.

INSTALLATION PROCEDURE

1. Park the Jeep on a flat, level surface and set the parking brake.

2. Remove the spare tire from the RockBrawler Bumper Tire Carrier, if present.

3. Use the 3/8-16 Hex Head Cap Screws, Flat Washers and Nylon Insert Lock Nuts to attach the Hi-Lift Jack Mount to the top four bolt slots on the RockBrawler tire carrier. It may be necessary to lower the spare tire mount if the top four bolt slots are not available. Thoroughly tighten all four screws/nuts.

4. Insert the two carriage bolts into the slots at either end of the Hi-Lift Jack Mount. The heads of the carriage bolts should be on the spare tire side of the jack mount (toward the rear of the Jeep, if the tire carrier is latched shut). Make sure the flats under the heads of the carriage bolts correctly engage into the slots. Note that it may be a tight fit, and the carriage bolts might not fully seat until they are tightened in later steps.

5. Install a 1/2” Pushnut Bolt Retainer (looks like a thin metal washer with internal “teeth”) onto each carriage bolt, with the teeth pointed away from the bolt head. Push the retainers all the way against the Jack Mount Plate.

6. Install a urethane bushing on to each carriage bolt.


7. With the help of a friend, lift the Hi-Lift Jack up on to the carriage bolts, while feeding the threaded ends of the bolts into the slots on the lifting bar of the Hi-Lift jack. Make sure the jack is centered in relation to the mount, with the lifting foot of the Jack pointed downward. Make sure the carriage bolts are going through correctly spaced holes in the jack’s lifting bar, so that they are straight (perpendicular to the mount).

8. Install a 1/2” flat washer on to the threads of each carriage bolt.


9. Decide whether to use the supplied 1/2-13 wing nuts or the 1/2-13 nylon insert lock nuts. Install the nut of your choice and securely tighten. Note that the urethane bushing will compress, and the carriage bolts will seat into the slots in the mount plate as the nuts are tightened.

NOTE: Using the wing-nuts will be more convenient, for those who access the Jack more frequently. However, using the lock nuts will be more secure, providing a measure of theft deterrent. Choose whichever method suits your needs best.

10. Grab onto the Hi-Lift jack and test that it is securely mounted. Further tighten any fasteners as needed.

11. Latch the tire carrier and re-install the spare tire.

Congratulations, you have completed installation of your RockBrawler Hi-Lift Jack Mount!