71 rear end
#1
71 rear end
Hi everyone,
So I've done some searching but can't seem to find an answer to my question which is, what gearing is in my diff. Assuming the internals haven't been changed out and solely based on the stamps on the casing. Hope someone here can shine some light. Thanks fellas.
Dave.
So I've done some searching but can't seem to find an answer to my question which is, what gearing is in my diff. Assuming the internals haven't been changed out and solely based on the stamps on the casing. Hope someone here can shine some light. Thanks fellas.
Dave.
#2
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Hi Dave,
The rear differential assembly information, date, plant, and original ratio were stamped on the underside of the case on the rear flange.
The letters indicate the ratio.
Regards,
Alan
Here you can see the stamp info beginning with LR… 1971 car, 3.36:1 positraction
The rear differential assembly information, date, plant, and original ratio were stamped on the underside of the case on the rear flange.
The letters indicate the ratio.
Regards,
Alan
Here you can see the stamp info beginning with LR… 1971 car, 3.36:1 positraction
Last edited by Alan 71; 07-18-2017 at 05:23 PM.
#4
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Hi Dave,
Nice!
LR….3.36:1 positraction
W….Warren Motive
174….Julian date, 174th day of the year…June 23rd
E….Positraction Source… Eaton
1….Plant Shift
E281….Casting date for differential case…May 28th
Is your car quite a late car? Near the end of 71 production?
The differential dates would seem to indicate that.
Regards,
Alan
Nice!
LR….3.36:1 positraction
W….Warren Motive
174….Julian date, 174th day of the year…June 23rd
E….Positraction Source… Eaton
1….Plant Shift
E281….Casting date for differential case…May 28th
Is your car quite a late car? Near the end of 71 production?
The differential dates would seem to indicate that.
Regards,
Alan
Last edited by Alan 71; 07-19-2017 at 06:34 AM.