SYNERGY | Dual Durometer Bushing (DDB) Series | / Ram 2500 / Ram 3500 | 4320-01 & Options

Description
Synergy Manufacturing bearings & bushings: Synergy Dual Durometer Bushing (DDB) Series.
Check the manufacturer part number and the vehicle application for the selected option before ordering.
Refer to the manufacturer instructions for required supporting parts and installation details.
Fitment & selection
8033, 8036, 8046, 8047, 8051, 8052, 8153, 8551-04, 8154, 8231,;8551-02, 8563-02, 8583-02, 8583-04, 8851-01, 8870-01, 8871-01, 8891-05, 8892-06;2.249";8551-03, 8563-03, 8583-03;2.249";7052-01, 7054-01;2.249";8053, 8853-01;2.124";8151, 8152;2.124";8035, 8891-07, 8853-01;2.124";8038;8062, 8068, 8075, 8087, 8233-03;8155-01, 8156;1.499;7062-01;1.782";8075-02, 8862-01, 8875-01;8675-01, 7675-01, 7675-02;1.758";8550-11;1.875
Part options
- 4320-01: LOWER CONTROL ARM BUSHING | 8033, 8036, 8046, 8047, 8051, 8052, 8153, 8551-04, 8154, 8231,;2.618 | 2 | 2.267 | 0.563
- 4320-02: CONTROL ARM BUSHING | 8551-02, 8563-02, 8583-02, 8583-04, 8851-01, 8870-01, 8871-01, 8891-05, 8892-06 | 2.618" | 5/8" /;2.618 | 2 | 2.267 | 0.638
- 4320-03: DODGE LOWER CONTROL ARM BUSHING | 8551-03, 8563-03, 8583-03 | 2.618" | 3/4" /;2.618 | 2 | 2.267 | 0.717
- 4320-04: BRONCO REAR CONTROL ARM BUSHING | 7052-01, 7054-01 | 74MM | 5/8" /
- 4320-05: BRONCO REAR CONTROL ARM BUSHING | 7052-01, 7054-01 | 70MM | 5/8" /
- 4321-01: JEEP FRONT UPPER CONTROL ARM BUSHING | 8053, 8853-01 | 2.000" | 1/2" /;2 | 1.75 | 2.135 | 0.505
- 4321-02: JEEP UPPER CONTROL ARM BUSHING | 8151, 8152 | 2.000" | 3/8" /;2 | 1.75 | 2.135 | 0.402
- 4321-03: FRONT UPPER CONTROL ARM BUSHING | 8035, 8891-07, 8853-01 | 2.000" | 1/2";2 | 1.5 | 2.135 | 0.505
- 4322-01: 2.32 | 1.75 | 2.135 | 0.563
- 4322-02: UPPER CONTROL ARM BUSHING | 8038 | 2.618" | 9/16" / 14MM | 2.124" | 4407-01
- 4323-01: JEEP TRACK BAR BUSHING | 8062, 8068, 8075, 8087, 8233-03 | 1.600" | 9/16" / 14MM | 1.499" | 4402-01;1.6 | 1.25 | 1.508 | 0.563
- 4323-02: JEEP TRACK BAR BUSHING | 8155-01, 8156 | 1.600" | 1/2" /;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
- 4324-03: 21+ BRONCO REAR TRACK BAR BUSHING | 7062-01 | 2.188" | 5/8" / 16MM | 1.633" | 4803-01
- 4326-02: FRONT UPPER CONTROL ARM BUSHING
- 4327-01: JEEP TRACK BAR BUSHING | 8075-02, 8862-01, 8875-01 | 1.600" | 9/16" / 14MM | 1.758" | 4409-01
- 4327-02: FORD TRACK BAR BUSHING | 8675-01, 7675-01, 7675-02 | 1.732" | 13/16";1.732 | 1.375 | 1.758 | 20mm
- 4327-03: DODGE RAM 2500/3500 2003-2008 | 8550-11 | 1.600 | 9/16" / 14MM | 1.758" | 4409-01
- 4327-04: DODGE RAM 2500/3500 2008.5-2013 | 8550-11 | 1.600 | 5/8" / 16MM | 1.758" | 4409-01
- 4328-02: DODGE RAM 2500/3500;1.6 | 1.41 | 1.887 | 0.717
Confirm the selected manufacturer part number, vehicle configuration and required supporting components before ordering or installation.
Fitment Table
Warranty
Shipping & Returns
Shipping & Refund Policy
Shipping:
We ship across Canada. Orders are processed within 1–2 business days. Delivery within Canada typically takes 3–10 business days depending on location and carrier. Tracking information will be provided once your order ships.
Refunds & Returns:
Returns are accepted within 30 days of delivery. Items must be unused and in original packaging. Please review our full return policy for more details.
Damaged or Incorrect Items:
If you receive a damaged or incorrect item, please contact us within 5 days of delivery. Call or text 416-624-1357 or email sales@Niagarajeeps.ca so we can resolve the issue quickly.