Front Widening Kits

Diamond J Customs’ A-arm and Shock Widening Kits are a unique approach to increasing the width of an ATV. Instead of replacing the a-arms with custom built, expensive after-market a-arms, this kit simply relocates where the a-arms and shocks mount to the frame. By doing this, the entire suspension moves out by 3 inches (or 2 1/4 inches, depending on which tie rod extensions you choose) on each side, maintaining the stock ride height and suspension travel, but improved because of the added width for stability and better handling.

The precision laser-cut brackets supplied in the kit bolt to the stock mounts on the frame, and provide two sets of new mount locations for the a-arms and shocks that are 2 ¼ or 3 inches outward on each side. This provides a 4.5 or 6 inch total increase in the width of the ATV while making use of all of the stock suspension components. Threaded extensions are also supplied to extend the steering tie rods to match the widening kit. Kits come complete with all necessary hardware and tie rod extensions that thread onto your stock tie rods and secure in place with jam nuts. Please specify if you want the tie rod extensions for the +4.5″ or +6.0″ setting at the time of ordering.

Stock shocks and a-arms can be used with all of the widening kits. Shocks and a-arms are not included with any of the kits.

The kits require no cutting or welding and can be installed easily in an afternoon by a typical home mechanic.

Brake lines are typically long enough for the conversion. Longer brake lines are available if the customer prefers to also make that modification. The following ATV’s will most likely need longer brake lines for the +6″ setting: YFZ450, 450R and Z400.

Some of the pictures show the ATV’s with the front bumper removed so you can see the kit more easily. The bumper mounts are not affected by the kits. Stock and aftermarket bumpers should work fine with all kits.

Steel brackets are made from 1/4″ thick carbon steel and are designed to be used in all types of riding and racing, including motocross. Many customers are using these kits to race every weekend. The a-arm mounting brackets are designed to be as strong as the a-arms connecting to them. The brackets work together to share the load in all directions (such as rough terrain or hooking an occasional tree on the trails). These kits ARE designed (and used) for the harsh conditions of motocross racing.

All kits come powder coated gloss black. We may be able to provide custom colors for an additional charge if you contact us for availability and rates. Kits come complete with all necessary hardware (nuts, bolts and washers).

All kits include 3″ tie rod extensions. If you would like to use the 4.5″ widening holes, 2.25″ tie rod extensions are sold separately. (available on our home page under the Tie Rod Extensions listing, or by using the search bar)