Trying to identify Rear end

gnadts7

New Member
Mar 9, 2018
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Trying to identify the rear end in my 83 mustang. Any help would be much appreciated, thanks.

18E5F7C0-5EE9-41E9-8E17-2E1C49AB8104.jpeg
3D974726-CD74-41A8-B005-47327BED17A0.jpeg
 
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That's an 8.8. The 7.5's are a little more "squished" top to bottom

differential-identification-chart.jpg



I *think* the date code says "7B12" which translates to Feb 12th, 1987 OR Feb 12th, 1997. It could be either date since the year is only displayed as one digit. If it had drums on it, i'd say it's a 1987 rear
 
Looks like an 8.8 to me. Can you clean off the rest of the tag and get a super clear flat pic? We could tell what gears came in it from that.
 
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It will say 88 on the tag, which I think I see. It will also say the gear ratio, like 2L73, 3L08, or 3L27 for the three factory gear ratios available in the 80's.

I'd say that rear came out of an 1987 Mustang v8
 
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201A = 1986 Capri/1986-93 Mustang, 2.73:1, 8.8", 28-spline, locking
2SL73 = 2.73:1 axle ratio, Traction-Lok (limited slip) differential
A
88 = 8.8" ring gear diameter
7B12 = built on February 12, 1987
 
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