Name: RockJock 4in Sport Edition Johnny Joint Lift Kit
Brand: RockJock
SKU: RJ-JK4DR0-101
Price: 2258 USD
Availability: OutOfStock

JK 4Dr

INCLUDED IN PRICE

Front Coils $284.00

1 x RockJock Coil Springs Front 4in Lift - JK/LJ/TJ
RJKCE-9132FP

Only 2 left!
Rear Coils $284.00

1 x RockJock Rear Coil Springs 4in - JK
RJKCE-9132RP

Only 3 left!
Front Upper Arms $410.00

1 x RockJock Off Road Suspension System Control Arms Front Upper - JK
RJKCE-9807FUA

In stock!
Rear Upper Arms $450.00

1 x RockJock Upper Control Arms - Rear - JK
RJKCE-9807RUA

Only 2 left!
Front Geometry Correction Bracket $77.00

1 x RockJock Front Track Bar Relocator Kit - JK
RJKCE-9807FTBK

Only 1 left!
Rear Geometry Correction Bracket $100.00

1 x RockJock Track Bar Relocation Kit Rear - JK
RJKCE-9807RTBK

In stock!
Front Bump Stops $86.00

1 x RockJock Off Road Suspension System Front Bump Stop Kit - JK
RJKCE-9807FBSK

In stock!
Rear Bump Stops $92.00

1 x RockJock Rear Bump Stop Extension Kit - JK
RJKCE-9807RBSK

In stock!
Rear Sway Bar Links $191.00

1 x RockJock Adjustable Sway Bar End Link Kit (14in Long) - Pair
RJKRJ-203002-101

In stock!
Front Brake Line Relocation Brackets $33.00

1 x RockJock Front Brake Hose Relocation Bracket Kit - JK
RJKCE-9807FBLBK

In stock!
Rear Brake Line Relocation Brackets $30.00

1 x RockJock Rear Brake Hose Relocation Bracket Kit - JK
RJKCE-9807RBLBK

In stock!
Pitman Arm $182.00

1 x RockJock Dropped Pitman Arm - JK
RJKCE-9807PA

In stock!
Rear Shock Relocator Kit $39.00

1 x RockJock Shock Mount Relocator Kit Rear - JK
RJKCE-9807RSRK

In stock!

$2,258.00

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Part # RJ-JK4DR0-101

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Installation Instructions

Fitment Details

Features & Product Details

RockJock's Sport Edition Johnny Joint Suspension System for JK Wrangler Unlimited provides 4 inches of lift and allows for efficient clearance of up to 37 in. tall tires (larger tires will require aftermarket fenders and minor trimming)!

Comprised of only the highest end components in the areas of strength, fit, finish, function, and the engineering to back them, this kit is more than sufficient for those who want to lift their vehicle, install big tires and hit some intermediate trails on the weekend!

For those who intend to do more serious 4 wheeling and rock crawling, you'll want to look at all of the upgrade parts that RockJock has to offer that can be added to this kit to get your vehicle to it's full potential at any level of off-roading!

Premium shock packages from Rancho, Fox and King are offered as options so that you can select the shock brand and performance level that matches your driving style. We always recommend adjustable shocks, as they allow the ride to be tuned to match the terrain and driver’s preference.

Kit Includes:

4 in. Lift Dual-Rate Front And Rear Springs

Johnny Joint Adjustable Front Upper Control Arms

Johnny Joint Adjustable Rear Upper Control Arms

Front and Rear Trac Bar Geometry Correction Brackets

Front and Rear Bump Stop Kits

Rear Adjustable Sway Bar Links w/ Sealed Ends

Front and Rear Brake Line Relocation Brackets

Dropped Pitman Arm

Rear Shock Relocator Kit

All Required Hardware

Kit Features:

RockJock Spec. Dual-Rate Springs - Feature a soft initial rate that absorbs small bumps and trail chop, to deliver a smooth, comfortable ride, while a firmer secondary rate helps soak up larger impacts and reduce bottoming. A key differentiator of RockJock spec. dual-rate springs is the positioning of the crossover point between the initial and secondary spring rates so that a portion of the softer initial rate is available and active at ride height before crossing over to the firmer secondary rate deeper into the travel.

Bump Stop Spacers - Proper bump stop extensions are a must and our heavy duty kits stand up to hard use while keeping the tires off of your JK’s fenders!

Johnny Joint Control Arms – Heavy duty adjustable upper control arms feature RockJock Johnny Joints, the original and most durable high-articulation urethane suspension joint on the market. Johnny Joints feature a smooth steel ball that pivots inside a proprietary urethane shell to provide over 30 degrees (per joint) of quiet, shock dampening articulation - without the excessive deflection found in soft rubber-based flex joints. Johnny Joints are so trusted, that they are used by multiple commercial suspension companies, for both street and off-road suspension systems.

Trac Bar Relocation Brackets - Restore front and rear suspension lateral geometry and produce better overall vehicle handling by raising the suspension roll center to bring it closer to the vehicle’s center of gravity.

Lift Details - The RockJock Suspension System provides 4 in. of suspension lift.

Actual lift height may vary due to factory build specs. and added equipment and accessories.

Tire Fitment:

37 in. tires – no inner fender modification necessary

38 in. or larger tires – aftermarket high-clearance fenders suggested/required

Wheel Backspace:

4.5 in. wheel backspace is recommended for all tire sizes