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SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
5052- SYNERGY SUSPENSION UNIVERSAL REAR 4-
LINK KIT
Version 1.0
GENERAL NOTES:
• These instructions are also available on our website; www.synergymfg.com.
Check the website before you begin for any updated instructions and additional
photos for your reference.
• These instructions include only the link suspension kit, you will need to
accommodate steering, spring and shock mounts in addition
• This is a universal kit and will likely require modifications to these components to
fit your application correctly
• The installation of this suspension kit requires extensive cutting, grinding and
fabrication. Many of the major suspension brackets on the frame will need to be
cut off and ground smooth. A plasma cutter or oxy-acetylene torch works best
but you can also use a grinder with a cut off wheel.
• You will need basic hand tools, MIG welder a grinder with cut off wheel or
sawzall, floor jack or automobile lift, and two sturdy jack stands to complete this
installation.
1. Unpack the suspension components from the boxes, verify that all parts are intact and
in good condition.
2. Read all the following steps before beginning installation. If you do not have the
proper tools or ability to install the components properly do not attempt installation.
Find a creditable, local shop to do the installation work.
3. Take some baseline measurements of your existing suspension so you know what you
had, measure the distance from the axle to the frame at ride height, axle to the ground,
and axle location front to back.
4. Make a plan and take notes of what you want to change, i.e. move the axle rearward
4-6" is common.
5. Tack weld everything, do not finish weld any component until you have cycled the
suspension and checked that everything clears adequately.
FRAME LINK BRACKETS
6. Use a floor jack under the center of rear axle to lift the tires off the ground. Place
jack stands under each side of the rear portion of the frame rails to support the weight
of the vehicle. Raise or lower the floor jack under the rear axle to remove and install
suspension components.
7. Remove the rear suspension components and the entire rear axle assembly
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SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
8. Cut off any suspension bracket on the frame that you will not be using, i.e. lower
control arm brackets, shock mount, spring mounts, track bar brackets, leaf spring
hangers, etc
9. Position and clamp the new rear frame control arm brackets on the frame. The front
to back location is entirely up to you, on a TJ or YJ, up against the back of the T-case
skid plate is generally is where it goes. You may need to relocate or push the brake,
fuel lines above the frame control arm bracket.
10. Mark the bracket where the top edge of the frame is.
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SYNERGY MFG. 870 INDUSTRIAL WAY, SAN LUIS OBISPO, CA (805) 242-0397
11. Remove the control arm bracket and cut at the line.