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7 1/4 or 8 1/4
https://www.slantsix.org/forum/viewtopic.php?t=19312
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Author:  aa-1159 [ Tue Aug 22, 2006 3:56 pm ]
Post subject:  7 1/4 or 8 1/4

how do you tell the difference :roll:

Author:  SlantSixDan [ Tue Aug 22, 2006 4:09 pm ]
Post subject: 

8¼" has a 10-bolt, horizontal-oval rear cover plate.

7¼" has a 9-bolt, generally-round-with-some-flats rear cover plate.

There are isolated reports of 10-bolt covers on 7¼" rear axles; I've never seen one in the metal or in the parts books.

Author:  DusterIdiot [ Tue Aug 22, 2006 4:46 pm ]
Post subject:  1980+

"There are isolated reports of 10-bolt covers on 7¼" rear axles; I've never seen one in the metal or in the parts books."

Only on 1980+ 7 1/4 rears...(not many out there to see actually, most F-bodies I've come across got an 8.25" rear for the slant...)


-D.Idiot

Author:  70valiant [ Tue Aug 22, 2006 5:27 pm ]
Post subject: 

7 1/4 has 2 1/2" axle tubes and 8 1/4 has 3" axle tubes

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