JK Geometry Correction Front Control Arm Drop Brackets
AEV's Front Control Arm Drop Brackets pack a lot of suspension performance improvements into a small and affordable package. These drop brackets will improve front impact ride quality (expansion joints, ledges), increase anti-dive for improved braking performance, decrease the operating angle range of the front driveshaft, and eliminate the need for adjustable control arms or cam bolts for caster correction. AEV Front Control Arm Drop Brackets are included in all AEV 3.5"/4.5" DualSport suspensions, but can also be added to AEV's 2.5" DualSport suspension as well as other manufacturer's suspensions. See Tech Specs for more details.
- Improve front impact ride quality (expansion joints, ledges) – By reducing the operating angle of the front control arms, the suspension is allowed to work in a more natural state. This means that when hitting a bump, the force applied to the control arms is directed up into the springs instead of back directly into the frame. In effect an AEV 3.5" lifted JK "thinks" its lifted only 1.25".
- Change the instant center to increase Anti-Dive for improved braking performance - By increasing the anti-dive geometry of the suspension, you'll notice the front of the vehicle will barely drop under hard braking when the control arm brackets are used. By increasing force on the front wheels, traction is increased for better straight line braking and by reducing the shifting weight and inertia under braking in curves, handling is greatly improved.
- Decrease the operating angle range of the front driveshaft – This one is often overlooked. Aftermarket double cardan joints do not have the torque rating (1850lb/ft for t a 1310 double cardan, 2150 lb/ft for the OE CV Joint) and they can’t run as smoothly so its advantageous for most JK use to keep the stock CV units. The Front Control Arm Brackets rotate the pinion up as the axle drops to eliminate torn boots on the CV for long life with a lifted application.
- Eliminate the need for adjustable control arms or cam bolts for caster correction - We've been touting the benefits of using the stock control arms for a long time because of the pre-loaded rubber OE Bushings that the factory uses, and because that quality has yet to be rivaled in any aftermarket bushing. These new brackets allow for the proper caster ranges to be achieved.
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