Thread: Gear ratios??

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lt1s10, I agree, there is a 3.50 gear set for the 9" Ford rear but I have only noted a 3.55 ratio for the 8" Ford Rear and the ratio we got with the tire rotation method gives 3.55 for both 20 and 40 tire rotations so I am pretty sure the ratio is 3.55:1. It only matters for the mechanical speedometer gears and I have already obtained a set for my tire size and 3.55 rear. I may/may not use an electronic speedometer, but I want to retain the option for a mechanical speedometer. DennyW the second site you list also shows only a 3.00, 3.55 and 3.80 ratios for 8" rears in that range. The only logical (lawyer talk, math-speak) question is whether I actually have an 8" Ford rear. I saw the '74 Maverick it came out of which had a 302-V8 and five lug bolts so I believe it is what is called an 8" Ford rear and the 3.55 ratio seems right.

Don Shillady
Retired Scientist/teen rodder