The X4 line is Driveshaft Shop's direct bolt-in CV axle for fast street cars that still see drag, road course and autocross duty, rated at 700HP in this hydraulic B-Series Honda and Acura application. The bar is 300M with a 300M splined stub feeding a chromoly CV housing, a combination selected for its heat treat response and torsional strength under repeated hard launches. This listing covers the right side axle and it runs the factory 26-spline wheel hub, so no hub or spindle change is required. Driveshaft Shop backs the X4 line with a 1 year warranty.
Specifications
| Type | X4 rated direct bolt-in front CV axle |
| Position | Front, right |
| Material | 300M axle bar, 300M splined stub, chromoly CV housing |
| Outer Spline Count | 26 (factory wheel hub) |
| Horsepower Rating | 700HP |
| Quantity | 1 (sold individually) |
| Warranty | 1 year |
| Part Number | 510085 (previously RA4000X4) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-2000 | Honda | Civic | Hydraulic B-Series, 26-spline hub |
| 1994-2001 | Acura | Integra | Hydraulic B-Series, 26-spline hub |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
