decode 70's 9"
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Senior User
Joined: Dec 2002
Posts: 239
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From: Grove City USA
decode 70's 9"
I've searched hi and low in the site for this info.. but just don't understand everything... I busted my 9 inch in my 78 f150 yesterday while muddin... and was just curious of what all these codes mean.... I realize that the two different rearends are the same ratio.
Old Rear End Rear End To Be
WDM-BZ 8FD WDM-AE2 6HD
3 50 9 390B 3 . 50 9 379A
Note that my old rear end has no "." in between the gear ratio number and these tags are both very easily read.... I was wondering if the one rear end was of better quality then the other... But I did have a heck of a time breaking the old one... hahaha FORD= For Off Road Driving
Old Rear End Rear End To Be
WDM-BZ 8FD WDM-AE2 6HD
3 50 9 390B 3 . 50 9 379A
Note that my old rear end has no "." in between the gear ratio number and these tags are both very easily read.... I was wondering if the one rear end was of better quality then the other... But I did have a heck of a time breaking the old one... hahaha FORD= For Off Road Driving
Postmaster
Joined: Jun 2003
Posts: 4,191
Likes: 0
From: WA
they are both open diff 3.50 ratio 9". Check these sites for more info
http://www.maliburacing.com/ford_9_i..._nine_inch.htm
http://www.ridgenet.net/~biesiade/Fordrears.html
http://www.maliburacing.com/ford_9_i..._nine_inch.htm
http://www.ridgenet.net/~biesiade/Fordrears.html
