9" axle bearing offset

Clutch, transmission, rear axle

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BobbyFord
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9" axle bearing offset

Post by BobbyFord »

Anyone have info on the axle bearing offset on 68-72 F100 rear axle shaft?
I'm trying to put wider brakes on my 63 F100, I have 1969 backing plates and drums but I didn't grab the axles :cuss:
The bearing offset on my 63 axle is 2", clearly this isn't going to work.
Busboy
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Re: 9" axle bearing offset

Post by Busboy »

What do you mean offset? it just bottoms out.
1967 F-100 4x4 custom cab.
Another 67 F-100 4x4 custom cab.
2016 F-150 Eco-Boost 2.7 liter. (It will smoke the tires!)
1972 F-350 Sport Custom cab & chassis.
1972 F-250 Explorer Special, Camper Special.
1971 F-100 custom. 302, C-4, p.s. p.b. factory 65 amp alternator with transistorized voltage regulator.
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BobbyFord
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Re: 9" axle bearing offset

Post by BobbyFord »

I found what I was looking for online.
I was referring to the distance between the wheel mounting surface on the axle and the outer edge of the axle bearing.
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BobbyFord
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Re: 9" axle bearing offset

Post by BobbyFord »

Both axles are 28 spline, 30" from wheel mount surface to spline tip. Here's the difference in the bearing offset...1963 is about 1-7/8"
Image

1968-1972 bearing offset is about 2-3/16"
Image
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