Click to zoom in
OEM-Spec Axle Bolt for Ford 10.5-Inch Full-Float Rear Axle
The Yukon Gear YUKYSPBLT-086 is a precision-spec replacement axle bolt for the Ford 10.5-inch full-float rear axle assembly. In a full-float design, the axle shaft floats inside a hub assembly supported by wheel bearings; the axle bolts at the flange are the sole fasteners retaining the shaft inside the hub. This bolt is machined to the correct thread pitch, grip length, and head geometry to deliver factory-specified clamping force when torqued to specification. Proper fastener spec is not optional on a full-float assembly.
Key Features
- OEM-spec replacement axle bolt for the Ford 10.5in full-float rear axle
- Correct thread pitch and grip length for factory clamping force at the axle flange
- Critical retention fastener on full-float axle designs
- Manufactured to OEM dimensional tolerances by Yukon Gear and Axle
- Sold as a single bolt; order the full count required for your application
- Lifetime Limited Warranty from Yukon Gear and Axle
Specifications
| Specification | Detail |
|---|---|
| Part Number | YUKYSPBLT-086 |
| Brand | Yukon Gear and Axle |
| Part Type | Axle Bolt |
| Application | Ford 10.5in Full Float Rear Axle |
| Sold As | Single bolt |
| Warranty | Lifetime Limited |
| UPC | 883584300358 |
What's Included
- 1x Yukon Gear axle bolt for Ford 10.5in full-float rear axle
Frequently Asked Questions
What is a full-float axle design?
In a full-float axle, the hub is supported by a pair of wheel bearings mounted on the axle tube, and the hub carries all vehicle weight and lateral loads. The axle shaft only transmits torque, and axle bolts at the flange are what retain the shaft inside the hub assembly.
How many bolts does a full-float Ford 10.5in axle use per side?
The Ford 10.5in full-float axle uses eight bolts per side to retain each axle shaft flange. Order accordingly for a complete set.
Why is the correct bolt specification important on a full-float axle?
The axle bolts are the only thing preventing the shaft from walking out of the hub assembly. An incorrect grip length, thread pitch, or head size results in insufficient clamping force, which can allow the shaft to loosen and separate from the hub under load.
What vehicles use the Ford 10.5in full-float rear axle?
The Ford 10.5in full-float rear axle was used in F-250 and F-350 Super Duty trucks, as well as Excursion and other heavy-duty Ford applications. Verify your specific axle code using the door jamb sticker or axle tag before ordering fasteners.
Can I reuse existing axle bolts if they look undamaged?
Bolts that have been removed and reinstalled multiple times or show thread damage should always be replaced. Installing the YUKYSPBLT-086 ensures known clamping values from new, OEM-spec hardware.
What torque spec should I use for axle flange bolts?
Torque specification varies by model year. Refer to the factory service manual for the correct specification for your Ford application. Generally, Ford 10.5in full-float axle bolt torque is around 110-115 ft-lb, but always verify.
Is this the same bolt as used on the Ford 10.25in full-float axle?
No. The 10.25in and 10.5in full-float axles use different axle flange bolt specifications. Verify your axle ring gear diameter before ordering to ensure you are selecting the correct part.
What warranty does Yukon provide on axle hardware?
Yukon Gear backs this bolt with a Lifetime Limited Warranty. Drivetrain components qualify for consumer protections under the Magnuson-Moss Warranty Act.
Installation Notes
- Clean all threads on the axle shaft flange before installing new bolts to ensure accurate torque readings
- Torque bolts to the factory specification in a crossing pattern to ensure even clamping force at the flange
- Do not use air tools for final torque; use a calibrated torque wrench
- Inspect the axle shaft flange and hub face for damage or corrosion before reassembly
- Order the full complement of eight bolts per side for a complete replacement set
Bolts
Bolts parts and accessories for engine, chassis, suspension, driveline, and exhaust projects are stocked at Black Ops Auto Works. Shop ARP bolts, stainless 12 point bolts, black oxide bolts, metric hardware, wheel bolts, flywheel bolts, main bolts, header bolts, axle bolts, ring gear bolts, fastener kits, and replacement hardware for LS, Coyote, HEMI, Ford, GM, Mopar, Porsche, and import engines. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 89 Bolts SKUs across thread, length, head style, material, finish, and application specific hardware. What This Bolts Collection Covers This collection covers automotive bolts and fastening hardware for repairs, engine assembly, chassis service, drivetrain work, exhaust installation, and wheel related service. It includes individual bolts and application specific sets across SAE and metric thread sizes. Thread, Length, and Head Style Choos...
View Bolts Products
Fabrication
Shop Fabrication Parts and Materials at Black Ops Auto Works for stainless steel tubing, titanium tubing, aluminum charge piping, mandrel bends, V-band clamps, flanges, merge collectors, AN fittings, PTFE hose kits, braided fuel and oil lines, heat shields, welding supplies, brackets, bungs, and hardware for building custom exhaust systems, turbo plumbing, intercooler piping, and fuel system routing. Start with tubing in stainless, titanium, or aluminum in the right diameter and wall thickness, then add mandrel bends, flanges, V-bands, and clamps to complete the joint work. Black Ops Auto Works carries 5,866 fabrication SKUs from Vibrant Performance, Ticon Industries, Stainless Bros, Radium Engineering, Fragola, DEI, and ATP Turbo. Why Custom Fabrication Custom fabrication solves fitment problems that no universal or pre-bent kit can address. Raw tubing, flanges, and fittings give the fabricator freedom to route exhaust around a turbo, snake charge pipe around accessories, hard-...
View Fabrication Products
Yukon Gear & Axle
Yukon Gear and Axle drivetrain parts are stocked at Black Ops Auto Works for GM, Ford, Chrysler, Ram, and Jeep platforms. Shop ring and pinion sets, positraction and locker units, axle overhaul kits, differential covers, driveshafts, and manual transmission rebuild components for Dana 60/61, GM 8.2/8.5/8.6/9.5, Ford 8.8/9/10.25/10.5, and Chrysler 8.25/9.25 inch axles. Yukon parts are proven in extreme-duty use, including King of the Hammers and Moab rock crawling events, and every part here is filterable by axle size, gear ratio, and spline count. Black Ops Auto Works carries 1122 Yukon Gear and Axle SKUs across ring and pinion, differential, and axle rebuild categories. What This Brand Covers Yukon Gear and Axle builds ring and pinion sets, differential carriers, positraction and locking differentials, axle shafts, bearing and seal kits, driveshafts, and manual transmission rebuild components for domestic trucks, SUVs, and Jeeps. The brand is best known for supporting extreme-d...
View Yukon Gear & Axle Products