A high-tensile M30 stake nut, a key component of the differential and gearbox. Its function is to precisely set and secure the position of the pinion shaft, which is essential for correctly setting the backlash in the gear set. This is a single-use item that must be replaced every time the pinion shaft is removed.
Aftermarket quality product – an intelligent choice combining excellent quality with an attractive price.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 3CX, 4CX (in drive axles and transmissions) |
| JCB (Telehandlers) | Loadall (e.g., 526, 528, 530, 535, 540) |
| JCB (Wheel Loaders) | 406, 407, 409, 410, 412, 415 |
The list above is for reference. Due to its wide application, we recommend verifying the nut size on your machine before purchasing.
An axle or transmission overhaul is a major operation. Always use fresh, clean HYPTRON gear oil to provide optimal lubrication for new components. Replacing the nut is also a good time to inspect and potentially replace the pinion shaft bearings.
The pinion shaft nut is crucial for the longevity of the entire drive axle or gearbox. It maintains the correct preload on the pinion's tapered roller bearings, which directly affects the setting of the "ring and pinion" gear mesh.
A loose or damaged nut leads to a cascading failure. The symptoms are:
✓ The Key to a Durable Repair: The GX-AFTER Choice
Reusing an old, stretched nut is asking for trouble and a repeat, costly repair. The GX-AFTER nut is a smart choice that ensures your axle or gearbox overhaul is done by the book. It's a small cost that secures the entire, expensive repair.
Rebuilding an axle or transmission? Don't skimp on the small parts!
Our nut is available off-the-shelf. Order it today and be sure that your repair will be durable and reliable!
Because its thread is already stretched and the staked locking flange has been deformed. Reusing it risks the pinion shaft coming loose and destroying the entire differential or gearbox.
2. Does this nut fit both front and rear axles?Yes, in most JCB backhoe models, the same nut is used in both the front and rear drive axles, as well as in the transmission. However, it is always best to verify this in the parts catalog for your machine's specific serial number.
🛡️
Durable Repair
Ensures correct shaft setting and security.
🎯
Drivetrain Protection
Prevents costly axle and gearbox failures.
📦
Perfect Fit
Compatible with JCB pinion shafts.
Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.
Data sheet
Specific References
Manufacturer
Responsible person
See also similar products



M30 attack shaft nut suitable for most JCB machines

















