Synergy Dual Durometer Bushing (DDB) Series

Part #: 4320X

Weight: 1 lbs

Description

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 Clevite 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

Part #	Description	Fitment	Mounting Width	Bolt Size	Housing Part #	Length	OD	Wall	ID
					Housing
4320-01	LOWER CONTROL ARM BUSHING	8033, 8036, 8046, 8047, 8051, 8052, 8153, 8551-04, 8154, 8231, 8551-01, 8563-01, 8585, 8232	2.618"	9/16" / 14MM	4408-01	2.000"	2.625"	0.188"	2.249"
4320-02	DODGE LOWER CONTROL ARM BUSHING	8551-02, 8563-02, 8583-02, 8851-01	2.618"	16MM	4408-01	2.000"	2.625"	0.188"	2.249"
4320-03	DODGE LOWER CONTROL ARM BUSHING	8551-03, 8563-03, 8583-03	2.618"	18MM	4408-01	2.000"	2.625"	0.188"	2.249"
4321-01	JEEP FRONT UPPER CONTROL ARM BUSHING	8053, 8853-01	2.000"	12MM	4410-01	1.500"	2.500"	0.188"	2.124"
4321-02	JEEP UPPER CONTROL ARM BUSHING	8151, 8152	2.000"	10MM	4410-01	1.500"	2.500"	0.188"	2.124"
4321-03	FRONT UPPER CONTROL ARM BUSHING	8035	2.000"	1/2"	4410-01	1.500"	2.500"	0.188"	2.124"
4322-01**	UPPER CONTROL ARM BUSHING	8038, 8054, 8854-01, 8553-01	2.360"	9/16" / 14MM	4407-01	1.750"	2.500"	0.188"	2.124"
4322-02	UPPER CONTROL ARM BUSHING	8038	2.618"	9/16" / 14MM	4407-01	1.750"	2.500"	0.188"	2.124"
4323-01	JEEP TRACK BAR BUSHING	8062, 8068, 8075, 8087, 8233-03	1.600"	9/16" / 14MM	4402-01	1.375"	1.875"	0.188"	1.499"
4323-02	JEEP TRACK BAR BUSHING	8155-01, 8156	1.600"	12MM	4402-01	1.375"	1.875"	0.188"	1.499"
4324-01*	DODGE TRACK BAR BUSHING	8550-01, 8550-02	1.600"	9/16" / 14MM	4409-01	1.375"	2.000"	0.188"	1.624"
4324-02*	DODGE TRACK BAR BUSHING	8550-01,	1.600"	5/8" / 16MM	4409-01	1.375"	2.000"	0.188"	1.624"
4326-02	FRONT UPPER CONTROL ARM BUSHING (AXLE SIDE)	8012-15, 8012-16, 8012-18	2.000"	12MM	8012-18 *	1.6	NA	NA	1.782
4327-01	TRACK BAR BUSHING	8075-02, 8862-01, 8875-01, 8550-11	1.600"	9/16" / 14MM	4409-01	1.375"	2.000"	0.188"	1.624"
4327-02	TRACK BAR BUSHING	8675-01
4328-01	TRACK BAR BUSHING	8704-01	1.63"	18MM	4810-01	5.39"	2.42"	0.188"	1.875"

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.
**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

Specifications:

Part #	A (MOUNTING WIDTH)	B (SHELL LENGTH)	C (OD)	D (SLEEVE ID)
4320-01	2.618	2	2.267	0.563
4320-02	2.618	2	2.267	0.638
4320-03	2.618	2	2.267	0.717
4321-01	2	1.75	2.135	0.505
4321-02	2	1.75	2.135	0.402
4321-03	2	1.5	2.135	0.505
4322-01	2.32	1.75	2.135	0.563
4323-01	1.6	1.25	1.508	0.563
4323-02	1.6	1.25	1.508	0.525
4324-01	1.6	1.25	1.657	0.563
4324-02	1.6	1.25	1.657	0.638
4328-01	1.6	1.41	1.887	0.717

WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle.
For more information go to www.P65Warnings.ca.gov