These rod ends are commonly passed by Engineers to be road legal in Australia.

We Keep limited stock on the shelf but can order in and have it to you in 10-15 business days.

Please note that these are ONLY AVALABLE IN LEFT HAND THREAD.

All other DDBs can be ordered in on request.

Synergy Dual Durometer Bushings (DDB) in forged housings have all the benefits of our Dual Durometer Bushings in a forged housing package. These are available for all Synergy products that use a Johnny Joint or rod end. See table for applications and specs. May be compatible with other products.


  • Dual Durometer Bushings (DDB) feature a maintenance free, grease less design
  • Housings are forged from high strength 1045 steel and treated for corrosion resistance
  • Control arm bushings are self centering with 30 degrees of misalignment
  • Outer "soft" durometer acts as bushing cushion and flex material
  • Inner "hard" durometer lining acts as the bearing surface to allow free floating inner sleeve to rotate.
  • Provides for a maintenance free "zero bind" bushing
  • Internal bushing ring separates inner and outer materials to prevent inner sleeve gaping at extreme flex
  • Direct replacement available for Synergy products using a Johnny Joint or rod end
  • Available complete with bushing installed
Part # Description Application Replacement Bushing Mounting Width Bolt Size Shank
4800-01 LOWER CONTROL ARM JOINT 803380368052815382318551-01 4320-01 2.625" 9/16" / 14MM 1 1/4-12 LH
4800-02 DODGE LOWER CONTROL ARM JOINT 8551-028551-038583-028583-03 4320-02 2.625" 5/8" / 16MM 1 1/4-12 LH
4801-21 UPPER CONTROL ARM JOINT 8553-01 4322-01 2.32" 9/16" / 14MM 1-14 LH
4801-22 JEEP JK REAR UPPER CONTROL ARM FRAME SIDE JOINT 8038 4322-02 2.625" 9/16" / 14MM 1-14 LH
4802-31 JEEP TRACK BAR JOINT 806280688075-0280878233-03 4323-01 1.60" 9/16" / 14MM 3/4-16 LH
4802-32 JEEP TRACK BAR JOINT 8156 4323-02 1.60" 1/2" / 12MM 3/4-16 LH
4803-41 DODGE TRACK BAR JOINT 8550-01 (03-07 trucks), 8550-02 4324-01 1.60" 9/16" / 14MM 7/8-14 LH
4803-42 DODGE TRACK BAR JOINT 8550-01 (08-13 trucks) 4324-02 (SYN-4800-02)

SKU SYN-4800-02
Brand Synergy
Shipping Weight 1.2500kg
Shipping Width 0.010m
Shipping Height 0.010m
Shipping Length 0.010m
Shipping Cubic 0.000001000m3