One Way Diff / Pulley

What is a One-Way Diff/Pulley?

The One Way Diff simply removes diff action from the front of the car. It allows the front wheels to free-spin (off power), giving you a much better cornering ability. You will, however, need to change your setup and driving style. Setup changes will include (possibly) a stiffer front spring, maybe heavier front oil, a softer rear spring or softer rear oil. As far as driving style, you will have to change that to a smoother, flowing style. No longer can you full throttle into a corner, slam the brake, and power out of it! It does take some getting used to, but it is by far a much faster way around the track.

One Way Diffs are recommended mostly on high bite tracks. The exception to this rule might be carpet, as the aggressiveness of the One Way might be a bit too much.

On belt drive cars, you have the option of a One Way Diff or a One Way Pulley. Both act basically the same, but the One Way Pulley allows the use of the front diff for cornering, but the freewheeling action of a One Way for straights and braking. You will notice a less drastic effect on handling with the Pulley. You could even try BOTH!!!

How do you change the One-Way?

Changing to the One-Way is fairly simple. For the One-Way Diff, it requires you to remove the front Diff out of your car and slide the One-Way assembly in it's place. All One-Ways come pre-assembled.

For a One-Way Pulley, again, it's a matter of removing the stock Pulley and just sliding this in it's place. The One-Way Pulleys also come pre-assembled.

It is important that you follow the directions for assembling the One Way Diff. Make sure you put plenty of RED LABEL ASSOCIATED Grease in the One Way bearings. DO NOT use any other lube, and don't pack it in. It may feel a little tight the first time you spin it, but, after the first run, it should free itself up.