JBA-6.7 Upper Control Arm Installation & Maintenance
Jeep Grand Cherokee 2005-2010 Jeep Commander 2005-2010 PLEASE READ, INSTALLATION IS DIFFERNT THAN FACTORY
What will void your JBA WARRANTY •Adding ball joint spacers to the JBA upper control arms. •Adding bump stops that hit the JBA upper control arms. •Adding limiting straps attached to the JBA upper control arms. •Cutting, grinding, welding, or modifying the JBA upper control arms. •Using the JBA arms on a vehicle, and/or a lift kit they were not designed for. •JBA upper control arms are not designed to be used when stacking two lift kits together. NO EXCEPTIONS
Index Upper Control Arm Removal.............................................................1-2 Upper Control Arm Installation..........................................3-6 Maintenance Procedure........................................................7 Bushing Replacement............................................................8-9 EZ Lube Bushing....................................................................10 JBA Ball Joint..........................................................................11 Front End Alignment............................................................12 Installation Notes...................................................................13 Merchandise............................................................................14
We take pride in our work at JBA Offroad, but we are human and sometimes make mistakes. Please check our work and ensure we shipped the part number you ordered and that they are a matching set. If there is a mistake on our part, we will correct it as soon as possible. However, if you disassemble your vehicle before you check the parts you received with your order, JBA Offroad is not responsible for any inconvenience this may cause you. Our responsibility is to make sure you received the parts you ordered. Product Number
*JBA-6.7 Lifted UCAs are symmetrical, both can be used on either driver side and passenger side.
No bump stops can contact the JBA upper control arms, or it voids our warranty!
Upper Control Arm Removal
1) Special Tool #8677 2) Upper Ball Joint 3) Knuckle 1. Remove the upper ball joint nut. 2. Separate the upper ball joint (2) from the knuckle (3) using special tool #8677. (1)
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Upper Control Arm Removal
1)Bolt 2)Spring 3)Upper Ball Joint 4)Knuckle 5)Upper Control Arm 3. Remove the wheel speed sensor wire from the upper control arm (5). 4. Remove the nut and bolt (1) securing the upper control arm (5) to the body. 5. Remove the upper control arm (5) from the vehicle. 6. Press out old bushings from bongs. 7. Clean out all rust or particles from bong for a smooth surface.
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Upper Control Arm Installation
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1)Upper Control Arm 2)Upper Ball Joint 3)Knuckle 4)Retaining Nut 5)Arm Mounting Pocket
*The surface of the Ez Lube Bushings need to be well lubed before installation!
1. Lubricate bushings before installation, then install upper control arm (1) to the vehicle. Washer orientation: two washers at 0.146", and one washer at 0.079", one black bushing, one steel A-Arm bong, one black bushing , one washer at 0.079" and the cluster of washers should be on the front side of a-arm mounting points on the Jeep. Use all 16 washers on installation. *The thin sheet metal portion of the arm mounting pocket (5) that is closest to the coil springs may need to be bent back slightly (toward the coil springs) with a bar or large pliers etc. in order to fit ALL 16 washer in place. This is necessary to assure that both thrust sides of the EZ Lube bushings have flat and parallel contact surfaces so that they pivot smoothly and get evenly distributed lubrication. Failure to install ALL 16 of the washers can lead to drive ability and alignment issues as well as reduced bushing service life
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Washer Orientation Diagram Driver side view
FRONT OF JEEP
Washer orientation: two washers at 0.146", and one washer at 0.079", one black bushing, one steel A-Arm bong, one black bushing , one washer at 0.079" and the cluster of washers should be on the front side of upper control arm mounting points on the Jeep. Use all 16 washers on installation.
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*The surface of the Ez Lube Bushings need to be well lubed before installation!
Upper Control Arm Installation
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1) Upper Control Arm 2) Upper ball Joint 3) Knuckle 4) Retaining Nut 5) Arm Mounting Pocket
2. Install the nut and bolt securing the upper control arm (1) to the body torque 90ft/lbs. 3. Install the wheel speed sensor wire to the upper control arm (1). 4. Install the upper ball joint (2) into the knuckle (3). 5. Install the upper ball joint retaining nut (4) and tighten the nut to 81 N.m (60ftlbs) 6. Install the wheels and tires.
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Upper Control Arm Installation Note: Certain models of the Grand Cherokee received a steering knuckle from a manufacturer in which the taper is drilled slightly shallower. This can cause the JBA ball joint threads to not pass through the knuckle properly. This problem only occurs in about 1 out of every 200 sets of arms sold. However, if you are experiencing this problem, don't worry, you do have the correct set of arms, and there is a simple solution: Take a 9/16" drill bit and carefully drill out the steering knuckle taper from the top down. This slightly opens the bottom of the taper to allow the 14mm threads of the JBA ball joint to pass through and properly seat. Doing this does not negatively affect the steering knuckle integrity in any way, nor will it prevent the OEM ball joint from fitting properly. 7. Remove jack stands and lower the vehicle to the ground. 8. Attach a grease gun to the ball joint grease valve, grease until the dust boot starts to swell. Then attach it to the bushing grease valve. Grease the upper control arm bushings until you see grease pushing out. If you do not grease these items, premature wear will occur. 9. Perform a wheel alignment (Refer to "Front End Alignment specs on page 11).
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Maintenance Procedure
Every 3,000-5,000 miles: (at the interval of every oil change) -Grease the ball joint with 3-4 pumps of lithium complex grease fortified with moly (molybdenum disulfide) . -Grease the upper control arm bushings with lithium complex grease fortified with moly (molybdenum disulfide), pump until you see grease consistently pushing out from the bushing’s EZ lube ports. -Perform a visual inspection of the ball joint boots. Ensure there are no large tears or damage to the rubber. If you see significant damage, we recommend replacing the boot with a new one. Replacement boots can be purchased through our website at: https://jbaoffroad.com/ball-joint-boots.html
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Ball Joint Replacement Video:
Bushing Replacement Replacement Instructions for bushing kit #JBA-TC-69000-EZ-6.7 1. Push in the inner bushings first.
2. Open the Lube packet, squeeze lube in the surface of the ¾” hole of all 8 bushings. 3. Do not lube to outside of the bushings. 4. Put a thin coat of lube on the steel sleeves. 5. Squeeze the excess lube from the tube in on the center of the bong filling the gap between the black bushings with lube. 6. Press in the outside bushings
7. Press in the steel sleeves.
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Bushing Replacement 8. With the excess lube that squeezes out rub it on the outside of the bushings. 9. Take the washers and stack them between the steel bushing sleeve and aarm pockets. (See image below for example.) Front of Jeep
a. For easy installation of washers put a film of grease on both sides of all washers and then squeeze them on the steel sleeve. b. Washer orientation: two washers at 0.146", and one washer at 0.079", one black bushing, one steel A-Arm bong, one black bushing , one washer at 0.079" and the cluster of washers should be on the front side of a-arm mounting points on the Jeep. Use all 16 washers on installation.
Front of Jeep
Cluster of washers on the front side of bong.
10. Install the A-arm in the Jeep according to the Installation Instructions.
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JBA EZ Lube Bushings
JBA has a patent on our control arm bushings. The EZ lube bushings have grease ports with a check valve. There is no need to loosen the mounting bolts to release the grease pressure. The maintenance procedure is simple: Attach grease gun to the bushing valve pump lithium complex grease fortified with moly (molybdenum disulfide) until you see grease pushing out from the bushing face. It builds up pressure and flows all around the ports in the bushing. Attach grease gun to the ball joint grease fitting, add 3-4 pumps of lithium complex grease fortified with moly (molybdenum disulfide). 1 grease cartridge will be more than sufficient.
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JBA Ball Joint
We recommend using Mobilgrease XHP™ 222 Special lithium complex grease or lithium complex grease fortified with moly (molybdenum disulfide), it is intended for a wide variety of applications and severe operating conditions. These greases were designed to outperform conventional products by applying cutting edge, proprietary, lithium complex manufacturing technology. It is formulated to provide excellent high temperature performance with superb adhesion, structural stability, and resistance to water contamination. This grease has a high level of chemical stability and offer excellent protection against rust and corrosion. This grease feature high dropping points and maximum recommended operating temperature of 140º C (284°F). Mobilgrease XHP 222 Special grease available in NLGI grades 2 or 3 with an ISO VG 220 base oil viscosity. Mobilgrease XHP 222 Special grease is designed for a wide range of applications including the industrial, automotive, construction and marine sectors. Their performance features make them ideal choices for operating conditions including high temperature, water contamination, shock loading and extended re-lubrication operations. Mobilgrease XHP 222 Special is an extreme pressure grease fortified with 0.75% molybdenum disulfide that provides protection from wear under conditions pivoting and other conditions that lead to loss of oil film.
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Front End Alignment
-0.25
-0.25
4.0
4.0
0.125
0.125
Factory alignment specs for basically all vehicles call for a certain degree of positive caster. This ensures good stability, helps maintain straight-ahead direction and promotes steering wheel self-centering. Camber is the inward or outward tilt of the front tires as viewed from the front. Toe-in is the amount the tires point in at each other from being parallel with each other. The higher you lift an IFS vehicle the less caster you will have, the JBA upper control arms will help replace the caster lost from lifting your vehicle.
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Installation Notes Installation Date _________ Mileage on vehicle ____________ Lift Kit Installation Notes: Measure center of wheel to underside of fender flare. List ride height Before and After: Driver Side Front B____________ A____________
Passenger Side Front B____________ A____________
Driver Side Back B____________ A____________
Passenger Side Back B____________ A____________
Maintenance schedule grease every 3 Months or 3,000 to 5,000 Miles. Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Mileage____________
Date__________
Save your front end alignment sheet from your Tech with these notes.
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Merchandise
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855.533.7437 704 Forman Rd. Souderton, PA 18964 sales@JBAoffroad.com
