MOCW billet steering wheel hub adapter for GM/Chevy 5 & 6-hole — black powdercoat, 11/16x36 spline

This precision-machined billet aluminum hub adapter lets you fit popular aftermarket steering wheels from brands like Grant, Sparco, Lecarra and GT Performance to select Chevrolet cars and trucks. Finished in durable black powdercoat, the adapter includes the spacer, hardware and ground wire needed for a tidy, safe installation on Flaming River and Ididit columns that use late-model GM splines.

Which Chevrolet models and columns will this hub adapter fit?

The MOCW hub is designed for late-model GM spline columns and covers a wide range of Chevrolet vehicles. It fits Chevrolet passenger cars from 1969–1994 except Corvette, Sprint, Spectrum and 1986–1988 Nova, and Chevrolet trucks from 1974–1994, plus Sprint, El Camino and Caballero 1967–1988.

• Compatible with Flaming River and Ididit columns using late-model GM splines.
• Works with most 5- and 6-hole aftermarket wheels (see compatibility list below).
• Not compatible with Nardi or Personal 6-hole patterns.

What wheel patterns and brands can I use with the adapter?

This hub accepts common 5- and 6-hole bolt patterns used by many mainstream aftermarket wheels. It will fit Grant, Sparco, Lecarra, GT Performance, APC, Pilot, Superior and many other standard-pattern wheels while excluding specialized patterns like Nardi/Personal six-hole designs.

• Accepts standard 5- and 6-hole wheels from major manufacturers.
• Does not fit Nardi or Personal six-hole bolt patterns.
• Ideal for retrofit steering upgrades or custom interiors using popular wheel brands.

What are the hub’s materials, dimensions and included parts?

The adapter is CNC-machined from high-quality billet aluminum and finished with a black powdercoat for corrosion and wear resistance. It uses an 11/16" x 36 spline inside diameter, and comes with an aluminum column cover (4" O.D., 1" tall), spacer, three hex bolts, a ground wire and Grade 5 hardware for installation.

• Billet aluminum construction with black powdercoat for durability.
• 11/16" x 36 spline ID; column cover 4" O.D., 1" tall.
• Package includes adapter, spacer, 3 hex bolts, ground wire and Grade 5 hardware.

How difficult is installation and what should I prepare for?

Installation is straightforward for anyone familiar with steering column work and aftermarket wheel fitment. You'll need basic hand tools, thread locker for critical fasteners, and to follow safety steps such as disconnecting the battery before working on the column and ensuring proper grounding for horn and electrical circuits.

• Requires basic tools and mechanical knowledge; not a simple plug-and-play for absolute beginners.
• Disconnect battery and follow torque specs for supplied Grade 5 hardware.
• Use thread locker where recommended and confirm horn ground wire routing.

Who is this for: The MOCW 5 & 6 Hole Billet Steering Wheel Hub Adapter is aimed at classic Chevrolet owners, restomod builders and customs who want to mount common aftermarket wheels to late-model GM spline columns. It’s especially useful for those running Flaming River or Ididit columns and who need a durable, OEM-style billet solution that includes hardware for a clean installation. If you plan to use a specialty pattern wheel such as Nardi/Personal, select a hub made specifically for that pattern instead.