Mr. Gasket Shock Absorber Extender

Mr. Gasket Shock Absorber Extenders: Practical Solutions for Lifted & Modified Vehicles

Mr. Gasket has been a trusted name in the performance aftermarket since 1964, when drag racer Joe Hrudka launched the brand using his own ‘57 Chevy as a rolling test bed. Now an important part of Holley Performance, Mr. Gasket continues to expand application coverage with new products for race cars and muscle cars alike. That same problem-solving philosophy that built the brand on gaskets and fasteners extends directly into their shock absorber extender lineup.

What Does a Shock Absorber Extender Do?

A shock absorber extender works by screwing onto the stud end of the shock, extending its length — a practical solution for vehicles that have been lifted or had their shock mounting points changed when longer shocks are not desired or simply unavailable. Rather than sourcing an entirely new set of shocks for a modified suspension setup, an extender lets you adapt your existing hardware to meet new geometry requirements.

Mr. Gasket Model 1290: The Shock Extension Set

Mr. Gasket’s flagship shock absorber extender offering is the Model 1290, a two-piece extension set engineered for common stud-end shock applications. Key specs and features include:

• The extension set allows up to five inches more travel for your shocks and fits 3/8 inch-24 shocks (stud end).
• Two extensions are included per set, giving you everything needed to address both sides of an axle in one purchase.
• The extenders are zinc plated, providing corrosion resistance in the demanding underbody environment where shocks live.
• The extension kit can also be used to extend 3/8 inch-24 shifter rods, adding versatility beyond pure suspension work.

Who Needs a Shock Absorber Extender?

This product is ideal for builders and enthusiasts who have raised a vehicle’s ride height — whether for off-road clearance, stance modifications, or suspension geometry changes — and need their existing shocks to reach their original mounting points. The extender screws onto the stud end of the shock, and is particularly useful on vehicles where the shock mounting point has been changed and longer shocks are not desired or unavailable, extending overall travel by 5 inches.

The Mr. Gasket Difference

Mr. Gasket is the go-to source for parts that seal and perform perfectly every time, and the brand is more than gaskets alone — with components ranging from AN hose and fittings to engine dress-up, fuel system components, shop tools, and much more. Beyond the gaskets that made the brand famous is an endless variety of high-performance parts, including heavy-duty suspension and driveline components. The Model 1290 shock extender is a prime example: a simple, precision-made hardware solution built with the same attention to detail that performance builders have relied on for decades. Browse the full Mr. Gasket brand catalog or explore all available shock absorber extenders to find the right fit for your build.