Throwback Thursday: We Take a Look At Multiple “Posi” Upgrades

The week is nearing completion, and once again, Thursday has landed on our doorsteps. If you’re like me, weekend garage plans have already made. If your plans for enjoying some garage time with your project include a little rearend work – for your car, we can help with that. Everyone wants their hot rod to leave a pair of black stripes on the road, but more often than not, a single black signature is all that is left. You my friend, need a “posi.” To get what you need, check out: Locking Versus Limited Slip: We Look At Four Eaton Differentials.

Once again, we celebrate another editorial look-back, and jump into the way back machine to open the Power Automedia vault that houses our vast collection of articles and revisit another great informational piece.

In this Throwback Thursday, we’re taking a small jump back to May 2016. When many new drivers get their first car, it is probably a hand-me-down grocery-getter. One thing that is quickly learned, occurs the first time you try to spin your tires – only one tire spins. The other tire didn’t seem to do anything more than support the opposite side of the car. This lack of a “posi” rear is what we often call a peg-leg or one-tire fryer, and if you managed to lay some rubber at all, you left only one stripe on the road.

A limited-slip differential is one way to gather that lost traction to the wheel that had the most grip. So instead of all the power going to the wheel that slips, much of that power is transferred through the differential to get power to the other wheel. The locking differential will provide power to both wheels.

posi

In the original article, we took a look at four Eaton differentials and provided information about each one, to help you decide which is the best for your application. To say that one is better than the others is inaccurate, because each of these serve a specific purpose, and your choice depends on how you use your vehicle.

posi

The Eaton ELocker is an electronic locking differential that operates much like an open differential until a switch is activated. When that happens, it becomes a locked differential.

There is a lot of information in the original article that can help you resolve your car’s peg-leg status, and that information is good to know. Therefore, if you’re planning to take a good hard look at upgrading to a better differential, I suggest you check out: Locking Versus Limited Slip: We Look At Four Eaton Differentials

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About the author

Randy Bolig

Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles.
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