Crane Axle 14-Bolt 30-Spline Billet Spindles (for Crane Spindle System)
CA01050S
Build it Once. Build it Right. The 14-Bolt is the king of axles, but factory spindles are its Achilles' heel. Whether you are resurrecting a junkyard axle or fabricating a custom housing from scratch, you need a foundation that won't warp, bend, or fail under the torture of modern rock bouncing.
Crane Axle’s 14-Bolt 30-Spline Spindles are the solution. Precision machined in-house from premium 4140 Billet Steel slugs, these are not just replacements. they are upgrades. We engineered these to eliminate the inconsistencies of cast parts, delivering unmatched grain structure uniformity for superior resistance to twisting and bearing journal wear.
Universal Compatibility
We know that custom fabrication isn't "one size fits all." We have updated our design to ensure maximum versatility for your build:
- Housing Agnostic: Fits both Metric Ribbed housings and Standard Smooth housings.
- Custom Fab Ready: Designed to work seamlessly with any custom axle housing featuring up to a 3" I.D. Bore.
- The Ultimate Combo: Pair these spindles with our Crane 14 Bolt 30 Spline Aluminum Wheel Hubs (CA01050) to create the ultimate lightweight, high-strength full-floating wheel hub assembly for your custom axle.
Includes:
- (2) 4140 Billet 30 Spline Spindles
- (2) Spindle Nut Spacers
Proudly manufactured in the U.S.A.
Specifications
- Material: 4140 Billet Steel
- Spline Count: 30 Spline
- Outer Diameter OD: 3.00 (compatible with 4 x .500 wall tubing)
- Machining: Individually machined
- Compatibility: Works with standard OR metric wheel bearing hubs
- Uses OE wheel bearings & wheel seals
- Includes spacers for spindle nuts
- Made in the USA
Features & Benefits
- Billet Strength: Machined from solid 4140 Billet Steel (no castings, no forgings).
- Serviceability: Designed to use standard OE wheel bearings and seals—parts you can find at any auto parts store if you're in a pinch.
- Precision Fit: Individually machined to exacting tolerances to ensure your hubs slide on perfectly every time.
- Complete Kit: Includes (2) Spindles and (2) Spindle Nut Spacers.
Fitment
- GM 14-Bolt Axles
Tech Insight
Why Billet? Crane Axle’s spindle program was born from frustration. Factory spindles often lack the material consistency required for high horsepower rock bouncers. By machining from solid billet, we ensure the grain structure remains uniform. This results in a spindle that resists the extreme leverage and shock loads of 40"+ tires better than any OE component ever could.