68 f100 9"

Clutch, transmission, rear axle

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RTG_RACING
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68 f100 9"

Post by RTG_RACING »

Does anyone know the spline count for the acles in a 68 ford 9".
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customcrewcab
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re: 68 f100 9"

Post by customcrewcab »

28
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averagef250
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Post by averagef250 »

31 for the very slim chance it has a big bearing.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70
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re: 68 f100 9"

Post by FORDification »

Right...'72 was supposedly the last year for 28-spline units and '73 was supposedly the first year for the 31-spline units. However, I've heard of a few rare instances of a late-'72 truck with a 31-spline setup and have also heard of a '73 with a 28-spline setup. However, those are rare enough that they're almost not worth looking for.
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RTG_RACING
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re: 68 f100 9"

Post by RTG_RACING »

So 73 up should be 31 spline? I have pulled I don't know how many axles looking for 31 splines and never found any all were 28 spline. These were all mid to late 70s trucks.
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