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Old 07-27-2013, 07:10 AM
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big gear head big gear head is offline
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How much power are you going to make, what transmission are you going to use, what tires will be on it and how much will it weigh?

Many times the stock '70s Ford case is good enough for a street car. The only real good case from Ford is the nodular case, and as I said above, one is better than the other.

None of the Ford installed differentials are any good except for the Detroit Locker, and they were installed in VERY few cars from the factory. The factory Ford Trac Lock will break and wipe out the gears and everything else when it does. Look at the picture below. This is from a stock Ford F150. I have a pile of these that are broke. After market differentials are made stronger.

Ford made about a dozen different yokes, so figure out what you need. There are long car yokes and short truck yokes and flanges. There are also 1310, 1330 and 1350 series for the different u joints.
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Last edited by big gear head; 07-27-2013 at 07:17 AM.
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