As you probably already know, the clunking or feeling the rearend feel a bit jerky at low speeds and tight turns is due to the posi unit disengaging as it has been designed to do. As you make a rather tight turn, the outside tire has a farther distance to travle than the inside tire that acts as more of a pivot point as it doesn;t make as many revolutions as the farter traveling out side tire.I'm not sure if the units from unique have clutch packs and springs like a GM type rearend or cogs that kinda mesh and seperate like a locker type found in the late 60's , early 70's ford mustangs, torino's, etc.[detroit locker, traction lock] plenty of those are still holding strong still today and they lived in 3800lb cars. Like it has been mentioned, these cars are much lighter, allowing for a lot less down force on the rear tires . from what i understand and have experienced, the jerky feeling you get in a tight turn is due to both rear tires trying to hold traction to the pavement, much less noticable in a light weight car.
If your really up for a challange, install a spool as Brent, myself and many others had to do in drag racing. trying to push a short wheelbased car in a turning position with hot sticky slicks that are 17'' wide and 33'' tall that do not disingage under any circumstances, will actually force you to push forward, backwards, forward again and so on until the turn has been completed. spools are great for their intended purpose, but would probably have a short life in a street application. If i have mis-spoken any of my facts, anyone please feel free to jump in and correct any of the above information.
Spending the money on a posi would be one of the better investments in your personal happiness, as well as resale later on down the road.
Thanks,
Eddie
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Originally Posted by drbb
In all honesty, I hope to be on the road within 3 weeks.
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