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A coupler is a mechanism that bolts or is welded to end of the trailer tongue and connects with the hitch ball. Couplers differ in capacity, style and application.

A coupler is a mechanism that is bolted or welded onto the end of a trailer tongue. It fits securely over - and pivots on - the tow vehicle hitch ball. When choosing the correct replacement coupler for your application, consider two factors:...

Review of the benefits and differences between available Firestone Air Command Kits for Firestone air springs and suspension systems.

Tired of stopping at a gas station or using a portable air compressor to inflate your air springs? Adding an Air Command Kit to your vehicle's suspension system allows for simple, convenient inflation of your air springs without getting...

Testing trailer breakaway systems.

Technical Bulletin SUBJECT/Summary: How to test electrical breakaway systems. SOLUTION: To test an electric breakaway system, you will have to have the trailer hitched to the tow vehicle. You will also want to check the state of charge in the...

A trailer jack lifts and supports a trailer tongue, and keeps it level when not attached to the tow vehicle. Jacks vary in capacity and features for different applications.

A trailer jack is an important part of safe towing. If you need to add or replace a jack on a trailer, the following information can help you choose among the many kinds to find the right one. Basic Functions of a Trailer Jack Raises and lowers...

Bungee cords offer a quick and easy way to tie down lightweight tarps, gear, and equipment. They stretch to fit and do not have to be tightened or tied.

A bungee cord tie-down consists of a single stretchy cord with a hook located at either end. They're perfect for quickly strapping down light items. Applications of Bungee Cords Bungee cords secure lightweight items and tarps. They can...

Description on how to remove, grease, and reinstall trailer bearings, races, and seals. Also some quick tips on backing the bearings with grease.

No parts are more critical for the dependable performance of your trailer than the bearings, races, and seals. To ensure that your trailer performs reliably, you should inspect the bearings, races, and seals and repack the bearings every 12...

How to install a trailer hitch. General information about the installation of trailer hitches on cars, trucks, and suvs including bolt-on, minor drilling, fish wire and other methods to make installing a hitch easy.

Before Installation: Make sure you have the correct hitch for your vehicle and the trailer being towed. Review the instruction sheet provided with the hitch. Check the hitch attachment area of the vehicle. Do not attach a hitch to a vehicle...

This article provides information on how to convert a trailer from electric brakes or no brakes to a trailer with electric over hydraulic drum brakes. This article identifies parts needed to convert a trailer to electric over hydraulic brakes and explains the compatibilities of the different parts.

You may be considering adding electric over hydraulic drum brakes to a trailer without any existing brakes or converting from electric drum to hydraulic drum brakes for improved stopping power. If so, you will need some basic information to...