The JK family uses 22 different factory coil springs, each with a slightly different rate, dictated by how the JK is equipped. New Black Diamond front / rear coils provide the lift. The largest jump in spring rate is from the 2 to 4-door model so we offer a heavier rated rear spring for the 4-door. Lift height can vary slightly (up to 3/8") depending on your factory spring rate. You can use rear 4-door coils on your 2-door to offset extra weight.
*Rubicon Models may required optional Front Sway Bar Links.
Check out the optional AEV ProCAL Module, a great finishing touch to any lift kit as it can reprogram your vehicles computer compensating for gear ratio and tire size changes after lift kit installation not to mention many other additional features.
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Black Diamond 3" Lift Kit with Shocks for 07-11 Jeep Wrangler Unlimited JK 4 Door
Description
Details
As the JK is raised, track bar angle increases and when lift height exceeds 2" bar length becomes an issue. Bar bind causes the chassis and axle to continuously "tug" against each other resulting in uneven ride height (side-to-side) and "roll and yaw". Front correction is accomplished via a new adjustable track bar. This route is preferred, as opposed to using a reolocation bracket, since the bar's arc-of-travel must remain in-sync with the drag link's arc-of-travel or steering wheel "kick" will result. A relocation bracket is used on the rear axle since there are no steering geometry issues.
The stock JK has no provisions for caster angle realignment, which is required at this lift height, so Black Diamond provides new alignment cams. Compression travel is controlled via new Urethane stops while Black Diamond AT shocks improve control and restore full extension travel. the lift system also includes longer sway bar links with factory style, greasable tie-rod type upper ends, front / rear brake hose relocation brackets and emergency brake cable brackets... nothing is left unattended.
Features
- Lift via pre-set coils; heavier rated coils for 4-door
- Adjustable front track bar; relocation bracket for rear bar
- Caster realignment cams
- Urethane compression travel-stops prevent suspension over-compression
- Extended sway bar links with factory style, greasable upper ends
- Emergency brake cable brackets and front / rear brake hose relocation brackets
- Black Diamond AT shocks
Installation Notes
Installation Difficulty:
Level 3AdvancedMechanic's Tools
Jack Stands
Installation Time: 2-4 hours
Parts Included
Two Front Coil Springs
Two Rear Coil Springs
Two Front Compression Stops
Two Rear Compression Stops
Front Track Bar
Rear Track Bar Bracket
Front Brake Hose Relocation Brackets
Cam Bolt Assembly
Rear Brake Line Relocation Brackets
Rear Sway Bar End Links
Two Front Shock Absorbers
Two Rear Shock Absorbers
Warranty
Limited Lifetime Warranty. Jeep Wrangler Unlimited 4-Door (JK)
- 2011 Jeep Wrangler Unlimited 4-Door (JK)
- 2010 Jeep Wrangler Unlimited 4-Door (JK)
- 2009 Jeep Wrangler Unlimited 4-Door (JK)
- 2008 Jeep Wrangler Unlimited 4-Door (JK)
- 2007 Jeep Wrangler Unlimited 4-Door (JK)