7-1/4 AXLE QUESTION

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MikeD

MikeD

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My 7-1/4 has quite a badly worn ring and pinion but i know where there's a better one very cheap but its 4 inch pcd and mine's 4.5, just wondered if my ends would swap over.
Mike
 
"pcd"???

Are you referring to wheel bolt pattern?

I thought all 7-1/4 rears used small bolt pattern axles, on slant six cars even after 1973.
 
Nope, i put a 7-1/4” in in saturday. it had big bolt pattern.
Diffs with same axle length will interchange.
 
The guy has all that stuff as well, i just want to know if i can swap my larger stud pattern parts, over to the other axle to avoid changing my draglites.
 
AJ/FormS said:
The big bolt patterns have 3inch tubes versus smaller on the 4s, requiring matching shock brackets and U-bolts. Not sure about springs.
Click to expand...
Sorry, this is not the case.
All A-Body 7 1/4" axles used 2 1/2" axle housing tubes. The large bolt pattern versions were used in both Slant six and V8 models with front disc brakes.
The U bolts were made longer for the 1967 and later models but the mounting plates are the same design from 1963-76.
 
im working on a 67 cuda 273 with drum brakes all around it has a 9 bolt 7 1/4 27 spline and it has small bolt pattern. it was a restore a few years ago
 
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