Description
Description
Fits
| Year | Make |
| Universal | Ford, Dodge, Jeep |
Maintenance-free, greaseless bushing with self-centring design allowing 30° misalignment. Combines a soft outer cushion for bushing cushion and a hard inner lining for smooth rotation. Features an internal ring to prevent gaping at extreme flex.
Features
- Maintenance-free, greaseless design
- Self-centering with 30 degrees of misalignment (4320-01, 4320-02, 4320-03)
- Outer soft inch 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.
- Internal bushing ring separates inner & outer materials to prevent inner sleeve gaping at extreme flex
- 2″ Wide With 1/2″ Bolt
Notes
- 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 that 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.
- 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).
- Housing only available as part of 8012-18 kit
Additional Info
Fitment:
| Part Number | Description | Fitment | Mounting Width (A) |
Bolt Size (D) | OD (C) |
Housing Part # |
|---|---|---|---|---|---|---|
| 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 | 2.249″ | 4408-01 |
| 4320-02 | DODGE LOWER CONTROL ARM BUSHING | 8551-02, 8563-02, 8583-02, 8851-01 | 2.618″ | 16MM | 2.249″ | 4408-01 |
| 4320-03 | DODGE LOWER CONTROL ARM BUSHING | 8551-03, 8563-03, 8583-03 | 2.618″ | 18MM | 2.249″ | 4408-01 |
| 4320-04 | BRONCO REAR CONTROL ARM BUSHING | 7052-01, 7054-01 | 74MM | 16MM | 2.249″ | 4408-01 |
| 4320-05 | BRONCO REAR CONTROL ARM BUSHING | 7052-01, 7054-01 | 70MM | 16MM | 2.249″ | 4408-01 |
| 4321-01 | JEEP FRONT UPPER CONTROL ARM BUSHING | 8053, 8853-01 | 2.000″ | 12MM | 2.124″ | 4410-01 |
| 4321-02 | JEEP UPPER CONTROL ARM BUSHING | 8151, 8152 | 2.000″ | 10MM | 2.124″ | 4410-01 |
| 4321-03 | FRONT UPPER CONTROL ARM BUSHING | 8035 | 2.000″ | 1/2″ | 2.124″ | 4410-01 |
| 4322-01** | UPPER CONTROL ARM BUSHING | 8038, 8054, 8854-01, 8553-01 | 2.360″ | 9/16″ / 14MM | 2.124″ | 4407-01 |
| 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 |
| 4323-02 | JEEP TRACK BAR BUSHING | 8155-01, 8156 | 1.600″ | 12MM | 1.499 | 4402-01 |
| 4324-01* | DODGE TRACK BAR BUSHING | 8550-01, 8550-02 | 1.600″ | 9/16″ / 14MM | 1.624″ | 4409-01 |
| 4324-02* | DODGE TRACK BAR BUSHING | 8550-01 | 1.600″ | 5/8″ / 16MM | 1.624″ | 4409-01 |
| 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 (AXLE SIDE) | 8012-15, 8012-16, 8012-18 | 2.000″ | 12MM | 1.782″ | 8012-18 * |
| 4327-01 | TRACK BAR BUSHING | 8075-02, 8862-01, 8875-01, 8550-11 | 1.600″ | 9/16″ / 14MM | 1.758″ | 4409-01 |
| 4327-02 | FORD TRACK BAR BUSHING | 8675-01 | 1.732″ | 20mm | 1.758″ | 8675-01* |
| 4327-03 | Dodge 2500 2008.5-2013 |
8550-11 | 1.6 | 14mm | 1.758″ | |
| 4327-04 | Dodge 2500 2008.5-2013 | 8550-11 | 1.75 | 5/8 / 16mm |
1.627″ | 4409-01 |
| 4328-01 | TRACK BAR BUSHING | 8704-01 | 1.63″ | 18MM | 1.875 | 4810-01 |
| 4328-02 | DODGE RAM 2500/3500 2014+ |
8704-01*, 8704-11 | 1.63″ | 3/4″ / 18MM |
1.875 | 4810-01 |
*Housing only available as part of 8675-01
Specs:
| 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 |
| 4327-02 | 1.732 | 1.375 | 1.758 | 20mm |
| 4328-02 | 1.6 | 1.41 | 1.887 | 0.717 |
Explore more from our collection.
Reviews
There are no reviews yet.