Description
Polyurethane spring-eye shackle kit for the rear-of-front leaf spring on Freightliner conventional trucks — ATRO SK46-10800. The complete service kit ships with two SP46-52800 polyurethane bushings, two 6.3″L × 2.75″W × 4-1/8″ center-to-center side bars, plus matching bolts, washers, and locknuts. Replaces Freightliner OEM 680-322-00-20, 680-322-01-05, and 680-322-03-01.
Specifications
| Manufacturer | ATRO Engineered Systems |
|---|---|
| Part Number | SK46-10800 |
| Part Type | Spring Eye Shackle Kit (Polyurethane) |
| Position | Rear of Front Spring |
| Side Bar Dimensions | 6.3 in L × 2.75 in W, 4-1/8 in center-to-center |
| Material | Polyurethane bushings, steel side bars and hardware |
| Quantity Per Vehicle | 1 kit per side, 2 kits per truck |
Kit Includes
- (2) SP46-52800 polyurethane spring-eye bushings
- (2) Side bars — 6.3″ L × 2.75″ W, 4-1/8″ C-C
- (2) Bolts
- (2) Washers
- (2) Locknuts
Cross References
This kit replaces or is equivalent to the following part numbers:
- Freightliner: 680-322-00-20, 680-322-01-05, 680-322-03-01
- Also known as: M1880, M5332, RB-211
Applications
This shackle kit fits the rear-of-front spring shackle on Freightliner conventional trucks using the 4″-wide front leaf spring, including FLD120, FLD112, Classic, Classic XL, Century Class, Columbia, Coronado, and Cascadia chassis with the 680-322-x leaf spring hanger family.
Verify the OEM shackle part number stamped on your existing hardware (680-322-xx) and front spring width (4″) before ordering. Replace shackles in pairs across the axle.
