More 7-1/4" Madness

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BWA

BWA

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OK, I've got my 75 Valiant Custom with the blown up Diff, and, I've got my 76 Valiant Base model (Very Base) parts car with a smashed front, and, a good diff.

Here's the problem.......

75 Valiant has 7-1/4" rear, 10 inch brakes, 5x4.5 bolt circle and, 5 stud bearing retainer.

76 Valiant has 7-1/4" rear, 9 inch brakes, 5x4 bolt circle, and, 4 stud bearing retainer.

How can I make this work, getting the 10 inch brakes and 5x4.5 bolt circle axles in the 4 stud diff???

5x4.5 axles have bigger bearings (both OD and ID) than the 5x4s....
 
Just change the gears and carrier out, not to hard to do.
 
BBP=Big Bolt Pattern, unless its something else.The housing ends that the backing plates bolt on too are probably different.
barracudadave67
 
Uh I meant the diff gears and all not interchangeable? Different axel spline maybe? Never knew that.
 
The diff pot and gears etc are interchangeable on both 7-1/4" axles.
What is different is the axle tube ends where the bearing retainers and back plates bolt on.

They are either 5 stud with a large bearing, or, 4 stud with a smaller bearing.

The only reason the axle shafts won't interchange, is, that the 5 stud axles (guessing all with 4x4.5 wheels stud circle) have a larger diameter bearing than the 4 stud axles (guessing, all with 5x4 bolt pattern)

In either case, length and spline count are the same......
 
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