1985-96 Front SKF Hub Conversion Adapters

SKU: FB-307K
In stock
Usually ships within 24 hours
Regular price $632.99
Manufacturer type
  • Use C5/6/7 Hub Bearings on a C4
  • Adapters Machined out of 7075-T6
  • American Made
  • Hardware for Hub and Knuckle Included

New for 2025 is the ability to have these brackets so racers can adapt to a modern, tune-able ABS system from Delta ABS when using C7 Hubs. The ABS adapter can be purchased separately

The advantages of a SKF X-Tracker hub bearing over all others:

With the SKF hub you gain increased stiffness for better brake performance under high loads. Under race competitive use, you may go an entire season without replacement.  This unit is designed to provide a high stiffness during cornering, reducing piston knock-back and the need to trail brake. It's also designed for durability and to maintain preload at a sustained loading of 1.2g. All this adds to faster lap times and better driver feedback.


The X-tracker, has a double row angular contact ball bearing arrangement. The outboard row has a larger diameter and contains more balls than the inboard row. Its asymmetric design increases load carrying capacity and operational life and raises camber stiffness above that of symmetrical hub units.

ARP Studs: If you option for ARP Lug Studs, we default to M12-1.5 x 2.5". Alternate option is M12-1.5 x 3.25". Call or email to request for alternate studs. Studs do not get pressed into the hub bearings until the order is placed.