Ok so I pulled the tab off my rear. I'm going by memory here, but I do believe it said WDW-AF. I could have gotten that wrong. But when I looked it up there was nothing that matched that. Can anyone help?

 

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Rear end for my 67 coupe. I looked in my book, nothing fit that for some reason.

 

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The Mustang restoration guide shows:
WCY, WCZ,WES, WFB,WFD,WFL,WFU,WDJ

Closest is WDJ C,C1 for 65-69 -8 inch 28 spline 3.00:1 and WDJ-B 65-69 - 8 inch 2.80 28 spline.

 

Yeah, I have HORRIBLE short term memory loss. I'll have to check it again in the morning and get back to you guys. I appreciate it though. But Scott I know it's not any of those letters. WFB looks better, but it's -AF, not sure what that means, unless it's a different rear? Who knows.