Stop trusting flimsy OEM hub locks. The Mile Marker 449SS Premium Manual Locking Hub Set is built for real work—off-road trails, snow and mud, towing, and daily heavy-duty driving. One quick 1/4‑turn and you get solid, positive engagement you can count on.
- All‑metal durability: stainless steel construction engineered and tested for strength.
- 30‑spline design: built to take more abuse than many stock hubs.
- Positive 1/4‑turn engagement: locks the inner drive gear to the clutch ring fast, with heavy‑duty spring and firm dial detents to stay engaged.
- Backed for life: limited lifetime warranty for defects in materials or workmanship.
- Replaces OEM hubs: works for manual or many automatic hub setups.
Common fitment: 1999–2004 Ford F‑250 / F‑350 / F‑450 / F‑550 Super Duty and 1999–2004 Ford Excursion. Always verify axle/spline before ordering.
What’s in the box: pair of locking hubs, springs, clips, and installation wrench.
Upgrade today and make your 4WD engagement feel rock‑solid again.
Compatibility / Application Guide
Replaces original equipment manual or automatic hubs. Some vehicles may require a nut conversion kit—check your match below.
| Vehicle | Year | Conversion Kit |
|---|---|---|
| Chevrolet / GMC | ||
| Chevy IT (K-30) | ’77-’87 | Not Required |
| Chevy IT Dana 50 & 60 Axle | ’77-’87 | Not Required |
| Chrysler / Plymouth / Dodge | ||
| 1 Ton Dana 50 & 60 Axle | ’90-’93 | Not Required |
| Ford | ||
| 1 Ton Pickup | ’59-’96 | 95-32721 Nut conversion kit (search “95-32721”) |
| 1 Ton Dana 50 & 60 Axle | ’76-’04 | 95-32721 Nut conversion kit (search “95-32721”) |
| F-250 | ’99-’04 | Not Required |
| F-250 ex. F/T | ’59-’98 | 95-32721 Nut conversion kit (search “95-32721”) |
| F-350 | ’88-’98 | 95-32721 Nut conversion kit (search “95-32721”) |
| F-350 | ’99-’04 | Not Required |
| F-350 Dana 50 & 60 Axle | ’76-’04 | 95-32721 Nut conversion kit (search “95-32721”) |
| F-450 | ’88-’98 | 95-32721 Nut conversion kit (search “95-32721”) |
| F-450 | ’99-’04 | Not Required |
| F-450 Dana 50 & 60 Axle | ’76-’04 | 95-32721 Nut conversion kit (search “95-32721”) |
| F-550 | ’99-’04 | Not Required |
| Excursion | ’99-’04 | Not Required |
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