mystery granada rear

Sounds like you have a 7.5" rear Ford used in FOX chassis cars before they switched to the 8.8. It is pure junk. Get rid of it as soon as you can.

bo duke said:

I've had a rear out of a granada in my 66 coupe a while now, but the gears are terrible, no tag of course. It is not an 8 or 9 inch cause the cover is in the back with 10 bolts in it. any idea what it is? is it worth doing anything to or should i start looking for an 8"?

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Ford used (4) different rear ends in the '75-'80 Granadas/Monarchs:

1. 8-inch small bearing drum brake rear end. --Good for swaps into Mustangs and other related Fords.

2. 8.7" integral style rear end (cover on back of housing) with drum brakes. Not a good rear end for performance.

3. 9-inch small bearing drum brake rear end. Good rear end basis for performance swap in Mustangs & related Fords.

4. 9-inch large bearing disc brake rear end (same rear end as Lincoln Versailles). Robust-built housing, but brake parts are heavy as well as expensive to replace.

In the 9-inch rear ends installed in Granadas & Monarchs, there were only four possible ratios installed from the factory;

1. 2.47:1

2. 2.50:1

3. 2.75:1

4. 3.00:1

Some of the 9-inch rears had 2-pinion Traction-Lok differentials and some had the stronger 4-pinion Tration-Lok differentials, but most had open (single track) differentials.

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