Classic Muscle
Search cars, engines, parts...

Search Classic Muscle

Enter at least two characters to search the archive.

Enter at least two characters to search the archive.

Authenticity reference

Close-ratio driveline

numbers matching · documented

Reference Details

Common issue
Wide-ratio gearbox, 28-spline or 3.25 rear, regular GT driveline, or later replacement parts represented as Phase II equipment
Confidence
documented
Correct value
L-code close-ratio Toploader, heavy tailshaft and joints, and 31-spline 3.50 Daytona 9-inch limited-slip axle
Where to check
Compliance plate, transmission case and tag, shifter and clutch, tailshaft, universal joints, axle housing and carrier, shafts, ratio, dates, and records

Cars With This Authenticity Marker

1 linked car page.

Sources & Documentation