Synergy Jeep JK/JKU/XJ Track Bar Dual Durometer Bushing 9/16in Bolt 1-7/8X.188 Bushing Shell

884984 Fitments:
Part #DescriptionFitmentMounting Width
(A)Bolt Size (D)OD
(C)Housing
Part #
4320-01LOWER CONTROL ARM BUSHING8033, 8036, 8046, 8047, 8051, 8052, 8153, 8551-04, 8154, 8231,
8551-01, 8563-01, 8585, 82322.618"9/16" / 14MM2.249"4408-01
4320-02CONTROL ARM BUSHING 8551-02, 8563-02, 8583-02, 8851-01, 8870-01, 8871-012.618"5/8" /
16MM2.249"4408-01
4320-03DODGE LOWER CONTROL ARM BUSHING8551-03, 8563-03, 8583-032.618"3/4" /
18MM2.249"4408-01
4320-04BRONCO REAR CONTROL ARM BUSHING7052-01, 7054-0174MM5/8" /
16MM2.249"4408-01
4320-05BRONCO REAR CONTROL ARM BUSHING7052-01, 7054-0170MM5/8" /
16MM2.249"4408-01
4321-01JEEP FRONT UPPER CONTROL ARM BUSHING8053, 8853-012.000"1/2" /
12MM2.124"4410-01
4321-02JEEP UPPER CONTROL ARM BUSHING8151, 81522.000"3/8" /
10MM2.124"4410-01
4321-03FRONT UPPER CONTROL ARM BUSHING80352.000"1/2"
12MM
2.124"4410-01
4322-01**UPPER CONTROL ARM BUSHING8038, 8054, 8854-01, 8553-012.360"9/16" / 14MM2.124"4407-01
4322-02UPPER CONTROL ARM BUSHING80382.618"9/16" / 14MM2.124"4407-01
4323-01JEEP TRACK BAR BUSHING8062, 8068, 8075, 8087, 8233-031.600"9/16" / 14MM1.499"4402-01
4323-02JEEP TRACK BAR BUSHING8155-01, 81561.600"1/2" /
12MM1.4994402-01
4324-01*DODGE TRACK BAR BUSHING8550-01, 8550-021.600"9/16" / 14MM1.624"4409-01
4324-02*DODGE TRACK BAR BUSHING8550-01, 1.600"5/8" / 16MM1.624"4409-01
4326-02FRONT UPPER CONTROL ARM BUSHING (AXLE SIDE)8012-15, 8012-16, 8012-182.000"1/2" /
12MM1.782"8012-18 *
4327-01JEEP TRACK BAR BUSHING8075-02, 8862-01, 8875-011.600"9/16" / 14MM1.758"4409-01
4327-02FORD TRACK BAR BUSHING8675-011.732"13/16"
20MM1.758"8675-01*
4327-03DODGE RAM 2500/3500 2003-20088550-111.6009/16" / 14MM1.758"4409-01
4327-04DODGE RAM 2500/3500 2008.5-20138550-111.6005/8" / 16MM1.758"4409-01
4328-02DODGE RAM 2500/3500
2014+8704-01*, 8704-11 1.63"3/4" /
18MM1.8754810-01
*Housing only available as part of 8675-01
Specifications:
Part #A
(MOUNTING
WIDTH)B
(SHELL LENGTH)C
(OD)D
(SLEEVE ID)
4320-012.61822.2670.563
4320-022.61822.2670.638
4320-032.61822.2670.717
4321-0121.752.1350.505
4321-0221.752.1350.402
4321-0321.52.1350.505
4322-012.321.752.1350.563
4323-011.61.251.5080.563
4323-021.61.251.5080.525
4324-011.61.251.6570.563
4324-021.61.251.6570.638
4327-021.7321.3751.75820mm
4328-021.61.411.8870.717
Features:
Synergy Dual Durometer Bushing (DDB) Series
Feature a maintenance free, grease less design.
Self centering with 30 degrees of misalignment. (4320-01, 4320-02, 4320-03)
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 aftermarket control arms using OEM Cleveite style lower control arm bushings.
Bushings available for all suspension components made by Synergy MFG as well as many other companies.
Bushings are sold complete with inner sleeve installed.
Check out the Video!
IMPORTANT: Dual Durometer Bushings (DDB) are not a replacement for Synergy products that originally came with Johnny Joints. These bushings are only replacements for Synergy products that came with Dual Durometer Bushings (DDB). Please call/email for more information on specific products. 805.242.0397 / support@synergymfg.com
Notes:
Parts in red do not yet come with these bushings.
4320-01, 4320-02 and 4320-03 have nylon outer shell.
4324-01 and 4324-02 replacement bushings are only for 8550-01 and 8550-02 Track Bars who came with these bushings. If upgrading from 4306-01 polyurethane bushings, Dual Durometer Bushings (DDB) can be retrofitted one of two ways depending on bolt size:
- 94-07 trucks with 14mm or 9/16" bolt: Replace with 4323-01 Dual Durometer Bushing (DDB) or use 8529-01 Retrofit Kit.
- 08-13 trucks with 16mm or 5/8" bolt: Must use 8529-01 Retrofit Kit.
8550-01 track bars built 5/19/2015 and newer and 8550-02 track bars built 2/13/2015 and newer require replacement bushings 4324-01 or 4324-02 depending on bolt size.
4327-03 & 4327-04 are an updated stiffer bushing for the 8550-11
**4322-01 bushing is not a retrofit for 8054 that came with Poly bushing halves. Correct replacement bushing is 4303-01 bushing halves.
*Housing only available as part of 8012-18 kit
More information: www.p65warnings.ca.gov