Thread: Rear End

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if you put twice as wide a tire on the rear would it serve the same purpose as a posi rear .. twice the amount of rubber contact

Think of it this way.When you turn,one rear wheel has to spin faster than the other.Draw a circle and draw a line threw the center of it.Then rotate the line left or right.You see that the outside of the turn spins faster and imagine the center the circle is the differential allowing that to happen.Now imagine the same circle but the line going threw it is solid or locked or the same thing would be a spool.Something has to give in order to make the turn and that is the outside tire which is scuffing.

Don't buy race gears either.They are fine for the short bursts,but to continuous drive on them,they heat up on harden gears and will fail.

There are a number of aftermarket sources for 9" Ford rear ends that you could buy at a very good price.

I also think on a street driven hot rod a one wheeler is just fine, unless you are wanting to beat on it from a dead stop. Limited slip, posi, etc rear ends MAY cause strange handling issues on a short wheelbase, light car, like wanting to make the car go straight on hard turns, like offramps. Not always, but sometimes. It seems to happen if you apply some power while making that turn, the rear "locks up" and both wheels want to go straight ahead.

That being said, I am running 4:30 Trac-loc gears in my 27 because I do intend on beating on this one a bit. (ok, A LOT! )

Don