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Rancho RS55179 Shock Absorber - Front Forward or Rear
Overview of Rancho RS55179 Suspension Shock Absorber
The Rancho RS55179 suspension shock absorber is engineered for Ford and Isuzu vehicles, including Bronco, F-150, F-250, and Trooper models. Designed to enhance ride quality and vehicle control, this shock absorber offers precise damping and durability for various driving conditions.
- Part Number: RS55179
- Brand Line: RS5000X
- Compressed Length: 13.76 inches
- Extended Length: 22.28 inches
- Travel Length: 8.52 inches
- Reserve Tube Diameter: 2.251 inches
- Upper Mount: Stem mount with 2.3/8 inch stem length and 3/8-16 thread pitch
- Lower Mount: Loop bushing mount with 5/8 inch bushing ID and 1.5/16 inch bushing OAL
- Includes Dust Shield and Extended Bumper Stop
- Parts Pack Included: P01135, P00920
RS5000X Product Line Details
The RS5000X line from Rancho is designed to provide reliable suspension performance with a focus on durability and consistent damping. This product line features shock absorbers with extended travel and robust construction, suitable for trucks and SUVs like the Ford Bronco and F-Series, as well as the Isuzu Trooper. The RS55179 model incorporates these design principles to deliver controlled handling and improved ride comfort.
Technical Description and Features
The RS55179 shock absorber features a compressed length of 13.76 inches and an extended length of 22.28 inches, allowing for a travel length of 8.52 inches. It includes a dust shield to protect internal components from debris and an extended bumper stop to prevent damage during full compression. The shock uses a loop bushing lower mount with a 5/8 inch inner diameter and 1.5/16 inch overall length, paired with a stem mount upper connection featuring a 2.3/8 inch stem length and 3/8-16 thread pitch. The reserve tube diameter measures 2.251 inches, contributing to the shock's durability and heat dissipation capabilities.
Applications and Problem Solving
- Improves ride stability and handling on Ford Bronco, F-150, F-250, and Isuzu Trooper vehicles
- Reduces suspension noise and vibration caused by worn or damaged shocks
- Prevents bottoming out with extended bumper stop design
- Protects shock internals with included dust shield for longer service life
- Restores proper suspension travel and damping performance
Installation Notes and Tips
Installation of the RS55179 shock absorber requires matching the upper stem mount and lower loop bushing mount to the vehicle’s suspension points. Ensure the 5/8 inch bushing ID and 1.5/16 inch bushing OAL fit securely in the lower mount. The upper mount’s 2.3/8 inch stem length and 3/8-16 thread pitch must align with the vehicle’s mounting hardware. It is recommended to inspect mounting hardware and bushings for wear during installation and replace if necessary. Use the included parts pack (P01135, P00920) for proper assembly and secure fitment.
Quality Assurance and Warranty
Rancho RS5000X shock absorbers, including part number RS55179, are manufactured to meet OEM specifications for fit and function. The product includes quality components such as dust shields and extended bumper stops to enhance durability. Warranty coverage details should be confirmed with the manufacturer or authorized distributor to ensure protection against defects.
| Brand | Rancho |
|---|---|
| Part Number | RS55179 |
| Position | RS5000X, Front Forward |
| L1 | |
| S4 | |
| Compressed Bumper Stop | No |
| Compressed Length | 13.76 |
| Dust Shield Included | Yes |
| Extended Bumper Stop | Yes |
| Extended Hydraulic Lockout | No |
| Extended Length | 22.28 |
| Lower Mounting Description | Loop Bushing Mount - 5/8" Bushing ID X 1.5/16" Bushing OAL |
| Parts Pack | P01135, P00920 |
| Reserve Tube Diameter | 2.251 |
| Travel Length | 8.52 |
| Upper Mounting Description | Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch |
This part fits 40 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1996 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1996 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1995 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1995 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1994 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1994 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1993 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1993 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1992 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1992 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1991 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1991 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1991 | Isuzu | Trooper | 4WD | Rear | with Rear Raised Height 0 (in) to 1.0 (in); RS5000X |
| 1990 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1990 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1990 | Isuzu | Trooper | 4WD | Rear | with Rear Raised Height 0 (in) to 1.0 (in); RS5000X |
| 1989 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1989 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1989 | Isuzu | Trooper | 4WD | Rear | with Rear Raised Height 0 (in) to 1.0 (in); RS5000X |
| 1988 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1988 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1988 | Isuzu | Trooper | 4WD | Rear | with Rear Raised Height 0 (in) to 1.0 (in); RS5000X |
| 1987 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1987 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1987 | Isuzu | Trooper | 4WD | Rear | with Rear Raised Height 0 (in) to 1.0 (in); RS5000X |
| 1986 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1986 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1985 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1985 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1984 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1984 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1983 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1983 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1982 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1982 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1981 | Ford | Bronco | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X | |
| 1981 | Ford | F-150 | 4WD | Front Forward | with Factory Equipped Quad Shocks; with Front Raised Height 4 (in); RS5000X |
| 1979 | Ford | F-250 | 4WD | Rear | with Rear Raised Height 0 (in); RS8125 Axle Shim Kit may be Required on Rear Axle for Shock-to-Axle Clearance; RS5000X |
| 1978 | Ford | F-250 | 4WD | Rear | with Rear Raised Height 0 (in); RS8125 Axle Shim Kit may be Required on Rear Axle for Shock-to-Axle Clearance; RS5000X |
| 1977 | Ford | F-250 | 4WD | Rear | From 03/1977; with Rear Raised Height 0 (in); RS8125 Axle Shim Kit may be Required on Rear Axle for Shock-to-Axle Clearance; RS5000X |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.