What are the 1966 Ford Mustang lug nut torque specifications?

The 1966 Ford Mustang lug nut torque specifications aren't a single number. They varied slightly depending on the wheel and whether they were using standard or "knock-off" style lug nuts (the latter being less common).

However, a generally accepted and safe range for most 1966 Mustang wheels is 50-60 ft-lbs.

Crucially: Always check your owner's manual (if you have it) for the *exact* specifications recommended for your specific vehicle's wheels. If you don't have the manual, consult a reputable Ford Mustang parts supplier or mechanic for the precise torque specification based on your wheel type. Using an incorrect torque can damage your wheels or studs. It's better to be slightly under than over-torqued.