The industry-standard Happijac front turnbuckle keeps your slide-in truck camper locked tight to the cab, eliminating rocking, rattling, and unwanted movement on the road. Built from corrosion-resistant stainless steel and designed to adjust -- no slack, no slop, just a secure connection every time you hit the highway.
Turnbuckles are the critical link between your camper and your truck. A loose or corroded chain-style tie-down lets the camper shift under load, putting stress on the camper floor, the truck bed, and the tie-down anchor points themselves. The Happijac FM-TBS spring-loaded turnbuckle eliminates that problem with a threaded barrel that lets you dial in exact tension and a spring mechanism that absorbs road vibration without going slack.
This is the front turnbuckle -- designed to connect the front camper tie-down brackets to the corresponding anchor points on your truck. It ships as a single unit, so order two if you are replacing both front turnbuckles at the same time.
Resists road salt, moisture, and weather exposure that corrode zinc or chrome-plated alternatives over time.
Built-in spring maintains constant tension, absorbing road vibration without loosening during travel.
Adjusts from 15 inches to 22 inches overall length to fit a variety of truck and camper tie-down configurations.
Comes with an 11-inch threaded hook for easy engagement with standard Happijac-style anchor brackets.
Traditional chain and binder setups require manual re-tightening over time as the chain stretches and vibration loosens the binder. The Happijac turnbuckle's threaded barrel holds its set position, and the spring mechanism compensates for minor flex without allowing the camper to rock. Many truck camper owners describe the difference as going from a sloppy, noisy ride to a solid, quiet connection -- especially noticeable on gravel roads, highway expansion joints, and mountain switchbacks.
This turnbuckle is part of the Happijac truck camper tie-down ecosystem, which Lippert Components acquired and continues to manufacture. It is designed to work with standard Happijac-pattern front anchor brackets and camper tie-down loops. If your current Happijac turnbuckle is bent, corroded, stripped at the barrel threads, or has a broken spring, this is the correct direct replacement.
Installation is straightforward: thread the hook end onto your camper's front tie-down bracket or ring, engage the opposite end to the truck anchor point, and adjust the barrel to take up slack until the camper sits firm against the cab. No special tools are required. Always tension both front turnbuckles evenly to avoid twisting load on the camper frame.