Recommended Torque Values

Model	Trim	Years	Torque
88	2/4 DOOR / 14-INCH	1988 - 1999	100 ft.-lbs.
98	2/4 DOOR / 14-INCH	1988 - 1996	100 ft.-lbs.
ACHIEVA	14" BASE / BASE	1992 - 1998	100 ft.-lbs.
ALERO	15" BASE / GX/GL	1999 - 2004	100 ft.-lbs.
AURORA	4/DOOR / SEDAN	1995 - 2004	100 ft.-lbs.
BRAVADA	4 DOOR / SUV	1991 - 2004	100 ft.-lbs.
CUTLASS	5-100 / CIERA	1984 - 1999	100 ft.-lbs.
CUTLASS	HOLIDAY / COUPE/CONV	1964 - 1967	80 ft.-lbs.
FIRENZA	13" BASE / BASE/WGN	1985 - 1988	100 ft.-lbs.
INTRIGUE	4 DOOR / GX/GL/GLS	1998 - 2004	100 ft.-lbs.
SILHOUETTE	14" BASE / VAN	1990 - 2004	100 ft.-lbs.
TORONADO	14" BASE / COUPE	1986 - 1992	100 ft.-lbs.

Oldsmobile Lug Nuts: A Key Component of Vehicle Safety

Lug nuts, while often overlooked, are critical to the safety and performance of any vehicle, including Oldsmobiles. These fasteners secure the wheels to the vehicle's hub, ensuring that the wheels stay attached under numerous driving conditions. The specifications of lug nuts, such as thread size, seat type, and torque requirements, are very important for proper wheel installation and overall vehicle safety.

Oldsmobile vehicles, like other cars, used specific lug nut sizes and types depending on the model and of course, the year. For example, many Oldsmobile models from the 1960s and 1970s, such as the Cutlass and 442, commonly used 7/16-20 lug nuts, meaning the thread diameter was 7/16 of an inch with 20 threads per inch. These lug nuts typically required a torque specification ranging from 70 to 90 lb-ft (foot-pounds), depending on the wheel and tire combination.

In addition to thread size, the seat type of the lug nut is also essential. Most Oldsmobiles used conical (also known as tapered or acorn) seat lug nuts, which were designed to match the corresponding taper on the wheel. This design ensures a tight and secure fit, preventing the wheel from coming loose while driving.

It is vital for owners of classic Oldsmobile vehicles to adhere to the correct lug nut specifications when maintaining or restoring their cars. Using the wrong lug nuts or improperly torquing them can lead to wheel detachment, which poses a severe safety hazard. As Oldsmobile enthusiasts continue to preserve the legacy of this historic brand, attention to detail in components like lug nuts remains as important as ever.