RockJock JK High Steer Knuckle Kit
RockJock's High Steer Knuckle Kit for JK Wrangler and Unlimited vehicles is a game changer that provides everything you need to get the job done! The components in this kit are specifically engineered to modernize your JK's steering and trac bar geometry to the improved specs. of a JL/JT, dramatically improving drivability as well as off-road performance.
| Part # | Description |
|---|---|
| RJ-430000-101 | RockJock JK High Steer Knuckle Kit for Ram Assist |
| RJ-430001-101 | RockJock JK High Steer Knuckle Kit, Steering Stabilizer, JK Track Bar |
| RJ-430001-103 | RockJock JK High Steer Knuckle Kit, Steering Stabilizer, JL/JT Track Bar |
RJ-430000-101
RockJock's High Steer Knuckle Kit for JK Wrangler and Unlimited vehicles is a game changer that provides everything you need to get the job done! The components in this kit are specifically engineered to modernize your JK's steering and trac bar geometry to the improved specs. of a JL/JT, dramatically improving drivability as well as off-road performance.
Intended for use on factory axles (Dana 30 and 44), this kit replaces the factory outer steering knuckles with RockJock's RJ-437100-101 cast iron high steer knuckles that exceed OEM quality and strength. RockJock's knuckles raise both the tie rod and drag link 2 3/4 in., moving the rods out of the way of rocks and helping to restore factory steering geometry for improved drivability and overall road comfort on a lifted rig. Additionally, the new knuckles push the tie rod outward, away from the axle slightly, allowing for tighter (JL/JT) steering angle over that of stock JK and 1 ton axles. 2 adjustable steering stop locations (fore and aft of axle centerline) for full lock-to-lock adjustability ease the strain on steering components at full lock.
RockJock's Currectlync steering included in this kit features RockJock's revolutionary JK-9704DL-T high articulation forged chromoly drag link that incorporates a unique organic shape with many compound curves that can only be achieved via forging, resulting in maximum up-travel capabilities. RockJock's RJ-432103-101 tie rod is a 42mm (1 5/8 in.) diameter chromoly tube. All Currectlync steering ends are forged steel and comparable in size to those found on modern 1-ton trucks.
The included RJ-9120FJLF forged chromoly organically shaped JL/JT front trac bar's longer length pushes the trac bar adjuster joint outboard of the frame rail providing an additional 5/8 in. of up-travel!
Given the dramatic geometry changes vehicle lifts impose, this kit includes RockJock's RJ-431109-103 fully integrated trac bar relocation and ram assist mounting bracket that raises your trac bar mounting point 2 in. and corrects it's geometry to prevent bump steer, as well as providing you with a solid mounting point for a JL/JT spec. hydraulic steering assist ram (allowing for more steering angle). The bottom of the bracket acts as a skid plate, protecting the ram from rocks.
Also provided is RockJock's RJ-441001-101 forged chromoly ram assist clamp that easily installs onto the 42mm (1 5/8 in.) tie rod tube, allowing for full adjustability and an easy hook-up point for the other end of your ram.
The new knuckles allow for all other factory outer components to be retained, including ball joints, unit bearings, outer axles, brakes and dust shields. The use of RockJock's RJ-107101-101 adjustable front bump stop kit is strongly encouraged to allow for maximum up-travel, as engineered.
Kit Fits:
*Fits all listed vehicles below, granted they retain the factory front differential, or any aftermarket differential that features factory spec. inner C-knuckles.
- JK Wrangler Unlimited (4-door) - All Models (D30 or D44 differential)
- JK Wrangler (2-door) - All Models (D30 or D44 differential)
Kit Includes:
- LH High Steer Steering Knuckle
- RH High Steer Steering Knuckle
- Currectlync Drag Link
- Currectlync Tie Rod
- Johnny Joint Trac Bar
- Trac Bar Relocation and Ram Mount Axle Bracket
- Ram Assist Tie Rod Clamp
- All required hardware and step-by-step instructions
Fitment Specs.:
- For use on any factory JK front differential (Dana 30 or Dana 44), or any aftermarket JK replacement axle that features factory specification inner C-knuckles and up to 3 1/2 in. diameter axle tubes.
- Retains factory ball joints, unit bearings, outer axles, brakes and dust shields.
- Trac bar relocation / ram assist axle bracket kit provides new sway bar link mounting holes that are raised 2 1/8 in. higher than stock (sway bar link lengths must be adjusted to accommodate this).
- Intended to be used with a minimum of a 17 in. diameter wheel and up to a 6 in. wheel backspacing.
- A minimum bump stop extension is mandatory to keep components from crashing under full articulation range conditions. See RockJock's bump stop options here.
- This package requires a ram assist steering ram stroke of 7.375 in. to achieve full potential (factory steering radius). Contact PSC for their part number CAK691-RJ ram.
Notes:
- Axle bracket easily installs, but requires welding. However, it mounts solidly enough with the bolts that you can safely drive it to a welder if need be.
- For optimum performance of this kit, RockJock recommend the use of RockJock's RJ-107101-101 adjustable bump stop kit.
- This kit is intended for use in conjunction with PSC's part number CAK691-RJ ram and ram assist steering kits.
Includes:
- High Steer Knuckles (pair): RJ-437100-101
- Currectlync Drag Link: JK-9704DL-T
- Currectlync Tie Rod: RJ-432103-101
- Johnny Joint Trac Bar: RJ-9120FJLF
- Trac Bar Relocation and Ram Mount Axle Bracket: RJ-431109-103
- Ram Assist Tie Rod Clamp: RJ-441001-101
RJ-430001-101
RockJock's High Steer Knuckle Kit for JK Wrangler and Unlimited vehicles is a game changer that provides everything you need to get the job done! The components in this kit are specifically engineered to dramatically improve drivability as well as off-road performance.
Intended for use on factory axles (Dana 30 and 44), this kit replaces the factory knuckles with RockJock's RJ-437100-101 cast iron high steer knuckles that exceed OEM quality and strength. RockJock's knuckles raise both the tie rod and the drag link 2 3/4 in., moving the rods out of the way of rocks and helping to restore factory steering geometry for improved drivability and overall road comfort on a lifted rig. Additionally, the new knuckles push the tie rod outward, away from the axle slightly, allowing for tighter (JL/JT) steering angle over that of stock JK and 1 ton axles. 2 adjustable steering stop locations (fore and aft of axle centerline) for full lock-to-lock adjustability ease the strain on steering components at full lock.
RockJock's Currectlync steering included in this kit features RockJock's revolutionary high articulation JK-9704DL-T forged chromoly drag link that incorporates a unique organic shape with many compound curves that can only be achieved via forging, resulting in maximum up-travel capabilities. RockJock's RJ-432103-101 tie rod is a 42mm (1 5/8 in.) diameter chromoly tube. All Currectlync steering ends are forged steel and comparable in size to those found on modern 1-ton trucks.
Given the dramatic geometry changes vehicle lifts impose, this kit includes RockJock's RJ-431110-103 fully integrated trac bar relocation and steering stabilizer shock mount raised 2 in., and corrects it's geometry to prevent bump steer, as well as providing you with a solid mounting point for a JL/JT spec. steering stabilizer shock (allowing for more steering angle).
Also provided is RockJock's RJ-441002-101 fabricated steel steering stabilizer shock tie rod clamp that easily installs onto the 42mm (1 5/8 in.) tie rod tube, allowing for full adjustability and an easy hook-up point for the other end of your shock.
The new knuckles allow for all other factory outer components to be retained, including ball joints, unit bearings, outer axles, brakes and dust shields. RockJock highly recommend the use of RockJock's RJ-9120FJKF forged chromoly organically shaped front trac bar and RockJock's RJ-107101-101 fully adjustable front bump stop kit to ensure that all components nest together for maximum up-travel, as engineered.
Kit Fits:
*Fits all listed vehicles below, granted they retain the factory front differential, or any aftermarket differential that features factory spec. inner C-knuckles.
- JK Wrangler Unlimited (4-door) - All Models (w/ D30 or D44 differential)
- JK Wrangler (2-door) - All Models (w/ D30 or D44 differential)
Kit Includes:
- LH High Steer Steering Knuckle
- RH High Steer Steering Knuckle
- Currectlync Drag Link
- Currectlync Tie Rod
- Trac bar relocation and stabilizer shock mount axle bracket
- Stabilizer Shock Tie Rod Clamp
- All required hardware and step-by-step instructions
Fitment Specs.:
- For use on any factory JK front differential (Dana 30 or Dana 44), or any aftermarket JK replacement axle that features factory specification inner C-knuckles and up to 3 1/2 in. diameter axle tubes.
- Retains factory ball joints, unit bearings, outer axles, brakes and dust shields.
- Intended to be used with a minimum of a 17 in. diameter wheel and up to a 6 in. wheel backspacing.
- A minimum bump stop extension is mandatory to keep components from crashing under full articulation range conditions. See RockJock's bump stop options here.
- This allows for the reuse of the use of factory JK stabilizer stabilizer shock.
- If you are intending to use a Bilstein 5100 series stabilizer shock with this system and RockJock's High
- Steer Knuckle Kit, see Bilstein part number 33-292984 for the bolt-on shock.
- If you are intending to use a Fox stabilizer shock with this system, see Fox part number 985-24-145 is the shock for this application, but it is not a simple bolt on affair in all instances. Some grinding and fitment may need to be done for optimum clearance and performance.
- Twin tube and thru-rod dampers will intersect with other components and are not for use with this system.
- With regards to differential cover clearance, this system clears fine with an OEM cover. Aftermarket diff covers may need to be clearanced to allow the stabilizer shock tie rod bracket to clear. However, be aware, some diff covers may not work at all.
Notes:
- For optimum performance of this kit, and to take advantage of all of the up-travel this kit is capable of, RockJock recommend the use of RockJock's RJ-9120FJKF trac bar and RockJock's RJ-107101-101 adjustable bump stop kit
- This kit is intended for use in conjunction with factory or factory replacement single mono-tube stabilizer shocks.
Includes:
- High Steer Knuckles (pair): RJ-437100-101
- Currectlync Drag Link: JK-9704DL-T
- Currectlync Tie Rod: RJ-432103-101
- Trac Bar and Stabilizer Shock Relocation Axle Bracket Kit: RJ-431110-103
- Stabilizer Shock Tie Rod Clamp: RJ-441002-101
RJ-430001-103
RockJock's High Steer Knuckle Kit for JK Wrangler and Unlimited vehicles is a game changer that provides everything you need to get the job done! The components in this kit are specifically engineered to modernize your JK's steering and trac bar geometry to the improved specs. of a JL/JT, dramatically improving drivability as well as off-road performance.
Intended for use on factory axles (Dana 30 and 44), this kit replaces the factory knuckles with RockJock's RJ-437100-101 cast iron high steer knuckles that exceed OEM quality and strength. RockJock's knuckles raise both the tie rod and the drag link 2 3/4 in., moving the rods out of the way of rocks and helping to restore factory steering geometry for improved drivability and overall road comfort on a lifted rig. Additionally, the new knuckles push the tie rod outward, away from the axle slightly, allowing for tighter (JL/JT) steering angle over that of stock JK and 1 ton axles. 2 adjustable steering stop locations (fore and aft of axle centerline) for full lock-to-lock adjustability ease the strain on steering components at full lock.
RockJock's Currectlync steering included in this kit features RockJock's revolutionary high articulation JK-9704DL-T forged chromoly drag link that incorporates a unique organic shape with many compound curves that can only be achieved via forging, resulting in maximum up-travel capabilities. RockJock's RJ-432103-101 tie rod is a 42mm (1 5/8 in.) diameter chromoly tube. All Currectlync steering ends are forged steel and comparable in size to those found on modern 1-ton trucks. The included RJ-9120FJLF forged chromoly organically shaped JL/JT front trac bar's longer length pushes the trac bar adjuster joint outboard of the frame rail providing an additional 5/8 in. of up-travel!
Given the dramatic geometry changes vehicle lifts impose, this kit includes RockJock's RJ-431110-103 fully integrated trac bar relocation and steering stabilizer shock mount raised 2 in., and corrects it's geometry to prevent bump steer, as well as providing you with a solid mounting point for a JL/JT spec. steering stabilizer shock (allowing for more steering angle).
Also provided is RockJock's RJ-441002-101 fabricated steel steering stabilizer shock tie rod clamp that easily installs onto the 42mm (1 5/8 in.) tie rod tube, allowing for full adjustability and an easy hook-up point for the other end of your shock.
The new knuckles allow for all other factory outer components to be retained, including ball joints, unit bearings, outer axles, brakes and dust shields. The use of RockJock's RJ-9120FJKF forged chromoly organically shaped front trac bar and RockJock's RJ-107101-101 fully adjustable front bump stop kit to ensure that all components nest together for maximum up-travel, as engineered.
Kit Fits:
*Fits all listed vehicles below, granted they retain the factory front differential, or any aftermarket differential that features factory spec. inner C-knuckles.
- JK Wrangler Unlimited (4-door) - All Models (w/ D30 or D44 differential)
- JK Wrangler (2-door) - All Models (w/ D30 or D44 differential)
Kit Includes:
- LH High Steer Steering Knuckle
- RH High Steer Steering Knuckle
- Currectlync Drag Link
- Currectlync Tie Rod
- Johnny Joint Trac Bar
- Trac bar relocation and stabilizer shock mount axle bracket
- Stabilizer Shock Tie Rod Clamp
- All required hardware and step-by-step instructions
Fitment Specs.:
- For use on any factory JK front differential (Dana 30 or Dana 44), or any aftermarket JK replacement axle that features factory specification inner C-knuckles and up to 3 1/2 in. diameter axle tubes.
- Retains all factory outer components including ball joints, unit bearings, outer axles, brakes and dust shields.
- Trac bar relocation / ram assist axle bracket kit provides new sway bar link mounting holes that are raised 2 1/8 in. higher than stock (sway bar link lengths must be adjusted to accommodate this).
- Intended to be used with a minimum of a 17 in. diameter wheel and up to a 6 in. wheel backspacing.
- A minimum bump stop extension is mandatory to keep components from crashing under full articulation range conditions. See RockJock's bump stop options here.
- This kit requires the use of either a factory JL/JT stabilizer shock or, specifically, Bilstein’s B8 5100 series stock replacement shock, part number: 33-292984 shock be used.
Notes:
- This geometry optimized kit requires the use of the supplied, longer RJ-9120FJLF JL/JT front Trac Bar
- To take full advantage of the up-travel that this kit is capable of, RockJock recommend the use of RockJock's RJ-107101-101 adjustable bump stop kit.
- This kit requires the use of either a factory JL/JT stabilizer shock or, specifically, Bilstein’s B8 5100 series stock replacement shock, part number: 33-292984 shock be used.
Indcludes:
- High Steer Knuckles (pair): RJ-437100-101
- Currectlync Drag Link: JK-9704DL-T
- Currectlync Tie Rod: RJ-432103-101
- Johnny Joint Trac Bar: RJ-9120FJLF
- Trac Bar and Stabilizer Shock Relocation Axle Bracket Kit: RJ-431111-103
- Stabilizer Shock Tie Rod Clamp: RJ-441002-101





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