Lube Locker

About Lube Locker

Lube Locker is a U.S.-based manufacturer that focuses on differential and transmission gaskets for cars, trucks and off-road drivetrains. The brand was built around one idea: that paper gaskets and tubes of RTV sealant are a poor answer to a leaking differential cover. Its gaskets are recognizable by a signature orange elastomer bead, and they are widely used by drag racers, circle track teams, desert racers and rock crawlers.

How Lube Locker Gaskets Are Built

Instead of cork or paper, Lube Locker gaskets use a rubber- or silicone-coated metal core with elastomer beading applied around the full sealing perimeter. That design is meant to install without sealant, resist splitting or extruding as bolts are tightened, and keep sealing through a wide range of temperatures. The gaskets are also described as reusable, and they can hold a seal even if the cover shifts slightly under load. That matters when you pull a cover repeatedly to check gear wear, change fluid or swap ratios.

Differential Cover and Axle Housing Gaskets

The core of the lineup is the differential cover gasket, offered for a long list of popular axles. Coverage includes the Dana 30, 35, 44, 60 and 80, Ford 8, 8.8 and 9-inch units, GM 7.5-inch and 10-bolt designs, Chrysler 8.25 and AMC 20. Because every housing has its own bolt pattern and cover shape, matching the gasket to your exact axle is the most important step when shopping. Some Dana 44 variants, such as the 44HD, use a different gasket than the standard Dana 44.

Many of these parts also fall under axle housing cover gaskets, which cover the same job of sealing the rear or front axle housing so gear oil stays in and dirt and moisture stay out. A seeping cover can lead to low lubricant levels, contaminated gear oil and accelerated wear on ring and pinion gears and bearings.

Wider Drivetrain Sealing

Lube Locker also makes gaskets for common automatic transmission pans, including GM TH350 and TH400, Ford C4 and AOD, and Chrysler 727 applications. These fall into the broader gaskets and seals category and use the same elastomer-bead approach as the differential line.

What to Consider When Choosing

• Axle identification: confirm the housing type, bolt count and cover shape before ordering.
• Intended use: reusable gaskets suit frequent inspection, racing and off-road service.
• Surface prep: clean, flat mating surfaces on both the cover and the housing help any gasket seal properly.
• Fastener torque: follow the axle or vehicle manufacturer's torque specification rather than over-tightening.

You may also see Lube Locker listed alongside LED replacement bulb pairs, which are sold in various bulb sizes. The brand's reputation, though, rests on its differential and transmission gaskets, which are designed for owners who want a clean, leak-free drivetrain.