Posi rebuild

[eschaider]

If you are in the market for a Torque Biasing differential, there are a number of different providers that can satisfy your desire for one. You should look at as many as you feel comfortable with prior to making your decision. Most are a $1K or thereabouts proposition, and you want to choose wisely. A poor choice will double the cost of the acquisition, although you might be able to sell the unwanted unit in the aftermarket.

Do not base your choice on price. For these devices, the price differences tend to be about +/- 25% from low to high, which while not insignificant, pales in comparison to selecting the wrong differential. Some units have a racing-inspired heritage, and some do not.

None will be horribly wrong. However, some will have aggravating characteristics, while others will have attractive characteristics. Pay attention to the tunability of the biasing function; it is neither magic nor automatic. One provider does offer what amounts to an automatic torque biasing preload compensation. That provider is Wavetrac. They also offer a lifetime warranty which no one else does. That said, they are also at the top of the pricing pyramid.

Be deliberate, take your time, and choose what you believe is best for your situation. Do not let price drive your decision — you will likely be unhappy if you do. Pay attention to the torque biasing technology and tunability of each unit you review.

A torque biasing differential properly matched to your car and driving style will put a smile on your face and produce a measurable improvement in your driving experience. One not so well matched will not, but it will put a dent in your wallet.

There is a radio station that will help you in your decision process, it is WIIFM. WIIFM stands for, "What's In It For Me." Make sure you get a clear answer.

As the Knight's Templar suggested to Indy as he puzzled over which grail was the real Holy Grail in the Last Crusade, 'choose wisely ...'