Thread: Headlight Options for 34 Plymouth

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Originally Posted by rumrumm

I second using a Detroit True-Track. I run one, and it acts like an open differential until you nail the throttle. It is a great way to go for cars like ours.

Two things sold me on the TrueTrac - they're pretty much bullet proof for the engines we normally run, and as a spiral gear posi there are no clutches to wear and thus no additives to worry with.

Dave, we were typing at the same time. From Detroit/Eaton's FAQ list:

How much horsepower and torque will the Truetrac take?
There are many factors to consider when determining if a specific differential will last in your vehicle. Horsepower and torque are important factors. However, the weight of the car, tire height/width, the terrain and suspension are all important things to take into consideration.

For example, a setup that uses street tires will live longer because both tires will break loose and spin before any real strain is put on the unit. But as the tire gets wider, the stress on the unit increases because the traction is greater. When in doubt, the best bet is to call us with your specific application and driving conditions.