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  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

rear end decoding

  • Thread starter Thread starter 351w_swap
  • Start date Start date Oct 22, 2006
3

351w_swap

New Member
May 23, 2004
263
0
0
Oct 22, 2006
#1
  • Oct 22, 2006
  • #1
I am looking at buying a rearend with a tag that says:
WDX G 71A
2 50 9 402A
I need any information possible on this. Is there anywhere that I can find this or does anyone know what this means? Any help would be much appreciated, thanks.
 
B

bnickel

Founding Member
Aug 21, 2002
5,640
3
77
lubbock, texas
Oct 22, 2006
#2
  • Oct 22, 2006
  • #2
all i can tell you is that it is an open rear with 2.50 gears.
 

Cupid

Member
Mar 30, 2006
162
0
16
Oct 22, 2006
#3
  • Oct 22, 2006
  • #3
Check Kevinstang's site.

Here's a site that I refer to every once in a while. May be of some help to you.

Kevinstang's
 
3

351w_swap

New Member
May 23, 2004
263
0
0
Oct 23, 2006
#4
  • Oct 23, 2006
  • #4
anything else? Is it a 28 or 31 spline? standard differential? all i know is that its from a lincoln versailles and that it has been cut to the length of a 65. I believe almost everything else is stock.
 
B

bnickel

Founding Member
Aug 21, 2002
5,640
3
77
lubbock, texas
Oct 23, 2006
#5
  • Oct 23, 2006
  • #5
351w_swap said:
anything else? Is it a 28 or 31 spline? standard differential? all i know is that its from a lincoln versailles and that it has been cut to the length of a 65. I believe almost everything else is stock.
Click to expand...


all versailles had 28 spline axles. yes the open rear means it is a standard diff. if it was a traction loc diff there would be an "L" between the 2 and the 50. in other words it would read 2 L 50
 

ultrastang

Founding Member
Feb 26, 2002
1,092
2
37
Arkansas
Oct 23, 2006
#6
  • Oct 23, 2006
  • #6
351w_swap said:
I am looking at buying a rearend with a tag that says:
WDX G 71A
2 50 9 402A
I need any information possible on this. Is there anywhere that I can find this or does anyone know what this means? Any help would be much appreciated, thanks.
Click to expand...

I tried cross-referencing the tag number you posted with what I have listed on my website, and come up with nothing.

If it was from a '77-'80 Lincoln Versailles, I'm puzzled as to why it would have been cut to fit a '65/'66 Mustang (??). Those rear ends already have the very same 52¼" wide (bare) housings as the '65/'66 Mustang's rear ends.

I have all the rear end codes listed on my site for the '75-'80 Granada/Monarch 8", 8.7", 9-inch drum brake, and '9-inch disc brake rear ends, as well as all the codes for the 9-inch disc brake rear ends from the '77-'80 Versailles, and this doesn't match any of them.

Sounds like it possibly came out of something else, like a big Lincoln Continental (56" wide housing) and was cut down to the narrower length.

As Brian said, the gears are 2.50 ratio, with a single track differential. the only other thing I can tell from your information is the rear end was assembled the 1st week of January, 1977.

http://ultrastang.com/Rearinfo.asp?Page_ID=5

www.ultrastang.com
 
3

351w_swap

New Member
May 23, 2004
263
0
0
Oct 23, 2006
#7
  • Oct 23, 2006
  • #7
thanks guys, great info. im still undecided on whether to buy or not but i think it will cost me $325. It is disassembled, supposedly to check all the components, is this a descent price considering that i will have to do something to put in some sort of posi or trac loc? Thanks
 
B

bnickel

Founding Member
Aug 21, 2002
5,640
3
77
lubbock, texas
Oct 23, 2006
#8
  • Oct 23, 2006
  • #8
$325 sound reasonable as long as all the brake components are in good usable shape. i had one that i completely went through and sold it for $1000 and barely made any money on it all. i put in new bearings and seals, new rotors, rebuilt calipers and a 3.70 center section. i would not have sold if i hadn't REALLY NEEDED the money. actually i would like to find another one for the cougar i'm getting.
 
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