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CODE: 14052 ZJ 3.5" ROCK-LINK Long Arm Lift Kit


ZJ 3.5" ROCK-LINK Long Arm Lift Kit
Purchase ZJ 3.5" ROCK-LINK Long Arm Lift Kit

  • CODE: 14052 ZJ 3.5" ROCK-LINK Long Arm Lift Kit

  • Kit Loading

  • Kit Products

    Choose Your Shocks *

      Choose Your Front Sway Bar Links *

        Choose Your Front Track Bar *

          Choose Your Rear Track Bar *

            Choose Your Rear Lower Control Arms *


             

            The paramount suspension upgrade for your ZJ is a long arm system. Iron Rock Off Road's 3.5" ROCK-LINK link long arm system offers unrivaled performance, giving your Jeep both the capability and ride quality improvements that you have been looking for. This ROCK-LINK long arm lift kit is built for strength, clearance, adjustability, flexibility, and ease of install. 

            • STRENGTH: Our subframe is constructed with 1/4" steel and our lower arms are even thicker at 2"x5/16" wall D.O.M. tubing.
            • CLEARANCE: We tuck our subframe up as tight as possible to gain you the critical extra clearance to keep your Jeep low and your belly high! The lower arm connections at the chassis are as high as possible with still being able to install a bolt through them. The control arms have an inboard bend to clear your tires, so you can steer lock to lock without rubbing on them
            • ADJUSTABILITY: All the arms have tons of adjustment built in for your stock situation to your stretched crawler.
            • FLEXIBILITY:Yes, of course we are talking about articulation, and the ROCK-LINK delivers plenty! But we are also talking about flexibility to install other axle combinations with ease. Use this kit with your stock Dana 30 for now, and then bolt in a Dana 44 or Dana 60 down the road!
            • EASE OF INSTALL: No welding, no complicated setup or templates. All you need is a drill, a floor jack, some jack stands and some hand tools. This is a BOLT-IN kit, although if your preferred method of installation is welding, you can do that! (NOTE: Required cut off the factory lower control arm mounts on the chassis) 

            KEY PRODUCT FEATURES:
            • 5/16" thick wall D.O.M. lower control arm material
            • 1/4" thick, 3 piece, subframe assembly
            • Huge tire clearance with inboard control arm bends
            • Best ground clearance available with super high clearance long arm subframe mounts
            • Makes axle swaps much simpler!
            • Maintains caster through the suspension cycle
            • Easy to install without welding, only simple drilling is required!!! Seriously, you can install this in your driveway in a few hours!

            INSTALLATION NOTES:
            1. This kit is 100% bolt on!! Strength is not compromised with this value added design feature. However, for those of you still concerned about strength, you can weld the subframe inor bolt AND weld them in (welding to the uniframe is complicated and should be done by an experienced professional welder). The choice is yours.
            2. The front subframe is assembled from 3 pieces. This will allow you to remove the center section for transmission/t-case access while leaving the front suspension (long arms) installed.
            3. If your ZJ has the CV (with rubber boots) front driveshaft, you may need to convert to the double cardan style to accommodate the lift height. Your rear driveshaft will work with this kit.
            4. We do offer a heavy duty SYE for the 231 transfer case and a hack-n-tap SYE for the 231 and 242. Using a slip yoke eliminator has been proven to reduce and/or eliminate vibrations that may occur with taller lifts.
            NOTE: This kit has not been tested with aftermarket headers and is known not to work with Doug Thorley Headers without modification.

            KIT INCLUDES:
            • Front and rear coil springs
            • Front high clearance subframe assembly
            • Front 3 Link Long Arm Kit
            • Heavy Duty Adjustable rear upper and lower control arms.
            • Heavy Duty Double shear track bar conversion (front)
            • Heavy Duty Rear adjustable track bar
            • Front and rear shock absorbers
            • Heavy duty extended front sway bar links
            • Rear extended length sway bar links
            • Extended length stainless steel brake hoses
            • All necessary hardware

            INSTRUCTIONS:
            Recommended tire size: 31"x10.50" – or metric equivalent

            Recommended wheel backspacing: 3.5"
            TRIMMING MAY BE REQUIRED
            Larger tire sizes possible with bumper/fender trimming and/or extended bump stops.

            Estimated Installation Time: 9-11hrs

            Difficulty Level: 3


            Difficulty Legend

            1 - Kit includes basic components.

            2 - Kit includes little to no adjustable components.

            3 - Kit includes many adjustable components; may require drilling/cutting.

            4 - Kit includes many adjustable components; requires welding; may require drilling/cutting.


            NOTE - Labor Time and Difficulty Level assumes vehicle and/or hardware is in good condition.

            Customer Ratings & Reviews

            1
            Ratings Snapshot
            5.0
            out of 5
            5 (1)
            4 (0)
            3 (0)
            2 (0)
            1 (0)
            Value 5.0
            Quality 5.0
            Service 5.0
            Would recommend this product.
            100%
            5.0
            out of 5
            5 (1)
            4 (0)
            3 (0)
            2 (0)
            1 (0)
            Value 5.0
            Quality 5.0
            Service 5.0
            Would recommend this product.
            100%
            1 Total Reviews
            Absolutely solid kit
            5 out of 5
            Nick
            Location: Boulder, CO
            Date: December 12, 2022
            Installed on a 98 ZJ. I think even at a 3.5” lift the long arms are worth it for a smoother ride. The quality of the control arms, flex joints, subframe, extended brake lines, and the design details like how the front arms tuck in above the frame rail - it’s all insanely good. Things I found easy: 1) The directions were highly detailed, follow them in order and you’ll have no problems. 2) Many of the components can be adjusted while partially attached, including the front upper control arm and rear adjustable track bar. Just let the axles droop to give yourself room to work. 3) Suggested lengths for the track bars and front lower control arms were perfect. Things that were challenging: 1) I think the suggested measurements for the rear upper/lower and front upper control arms were a bit off. I had to shorten the rear upper and lower control arms by ~3/4” to get proper axle alignment, and the uppers a bit more to fix the pinion angle. The front upper was also too long, gave me a pinion angle of 7 deg (when it should be 0). I was able to lengthen it by ~5/6" with it still attached to the subframe. 2) Not IRO's fault, but I had a rear shock bolt shear off. I fixed it by drilling and tapping a hole in the shock mount and securing the shock bushing with a washer and bolt (rather than nut). 3) Also not IRO’s fault, but getting the stock rear track bar off was a total s##tshow. The axle side T55 bolt is loctite'd in, even after hitting it with PB blaster and propane I still stripped the head. I ended up cutting a hex shape into the bolt head with a sawzall and drilling it out from the other side. I just barely grazed the inner threading on the bolt and was able to get it off with a hex socket and breaker bar, without destroying the welded nut. Some random things: 1) The rear sway bar links will rub your tires if you have the stock wheels (hence IRO’s recommended backspacing). I run 31x10.5’s on stock wheels and a 1.5” spacer is plenty. 2) Absolutely use cutting fluid for drilling the subframe, otherwise it’ll take way too long.
            Recommended
            Value 5
            Quality 5
            Service 5
            1 Total Reviews
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