UcarSoon Steering Wheel Hub Adapter 5 & 6-Hole Black — Billet Aluminium for GM 366 Counter-Spline (1969–1994 Chevy/GMC)

UcarSoon's black billet aluminum hub adapter lets you mount most aftermarket 5- or 6‑hole steering wheels to GM-style 366 counter‑splined columns found on many Chevy and GMC trucks from 1969–1994.

This steering wheel hub adapter is a purpose-built replacement designed for classic American trucks and compatible aftermarket columns. Machined from billet aluminum and finished with a black powder coat, the hub is sized to work with 366 counter splines (commonly used in Flaming River and similar columns). The kit ships with the fasteners and accessories needed for installation, but because spline engagement depth is limited, confirm fitment before ordering.

How do I know this hub fits my steering column?

Fit depends on spline type and available spline length: this adapter is made for 366 counter‑splined columns and reaches 5 inches from spline end to the adapter top. Measure your column spline length and compare to that dimension. Also verify your column is not an expansion‑style type.

• Intended for 366 counter splined columns (e.g., Flaming River style)
• Adapter depth: 5 inches from spline end to adapter top
• Not compatible with expansion‑type columns
• Measure spline length before purchasing

What comes in the package and what tools are included?

The kit contains the adapter plus the essential fasteners to attach most aftermarket wheels and to secure the hub to the column. A hex socket wrench is included so you won’t need additional bolts for a basic installation, but you may need vehicle‑specific tools or instructions depending on your column and wheel choice.

• 1 billet aluminum hub adapter with black powder coat
• 6 small hexagon socket bolts and 6 large hexagon socket bolts
• 1 hexagon socket wrench, 1 metal ring, bell-shaped steel wire, and a black plastic sleeve
• No printed installation instructions included

How durable and safe is the adapter for regular use?

The adapter is CNC‑machined from high‑quality billet aluminum and finished with a black powder coat for corrosion resistance and improved surface hardness. While built for durability and wear resistance, proper installation and correct fitment are critical to safe operation; loose or improperly matched components create risk.

• Billet aluminum construction for strength and weight savings
• Black powder coat improves wear and corrosion resistance
• Includes multiple bolt sizes to suit different wheel mounting patterns
• Verify torque specs and secure installation with appropriate tools

Can I use this adapter with modern aftermarket steering wheels?

Yes—if the steering wheel uses a 5‑ or 6‑hole mounting pattern compatible with the supplied bolts and the wheel’s boss matches the adapter hole spacing. The kit is intended to bridge many popular aftermarket wheels to GM counter‑splined columns, but check bolt pattern and hub clearance before purchase.

• Supports common 5‑ and 6‑hole wheel patterns with supplied bolts
• Confirm wheel center bore and bolt pattern match the adapter
• May require additional hardware or spacers for some wheel designs
• Not a universal fit—measure and compare before ordering

Who is this for: The UcarSoon billet hub adapter is aimed at restorers and hot‑rodders replacing or upgrading steering wheels on classic Chevy and GMC trucks (1969–1994) and owners fitting aftermarket wheels to 366 counter‑splined columns such as Flaming River. If you’re comfortable measuring splines, matching bolt patterns, and performing basic installation, this kit provides a durable, black‑finished hub that integrates many popular steering wheels with GM‑style columns.