splines ?
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Freshman User
Joined: Mar 2003
Posts: 29
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From: Minnesota
splines ?
I was looking at complete center sections with posi, but unsure as to if my 9" rear is 28 or 31 spline, I would guess 31. Would appreciate if someone could let me know about my 61's rear end.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Daniel, Welcome to FTE 
Your Uni will have a 28 spline axle in it. Ford used the same length rear axle from about 57 to 72. In 68 the brake size and bearing placement was changed and used through 72. The 31 spline was introduced in the mid 70s but it was late 70s before the 28 was dropped.
hope this helps a little
John
Your Uni will have a 28 spline axle in it. Ford used the same length rear axle from about 57 to 72. In 68 the brake size and bearing placement was changed and used through 72. The 31 spline was introduced in the mid 70s but it was late 70s before the 28 was dropped.
hope this helps a little
John
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