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  '64 1/2 to '73 -- The Classic Mustang
  Traction/Equa -Lok Rears

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Author Topic:   Traction/Equa -Lok Rears
mellowyellow
Gearhead

Posts: 5739
From: So. Fl.
Registered: Aug 2000

posted 01-01-2002 12:29 AM     Click Here to See the Profile for mellowyellow     Edit/Delete Message   Reply w/Quote
I've had an 8" 3:50 posi, or whatever, chunk for some time. Planning to put it in my 65 which now has a 3:00 (equa-lok).

Today I got on a site that discused rears, My C70w rear with a date code of 7H9 was diagnosed as a '77 traction-lok. I thought the rear was made in 67 but this person says 77.

Anyway, what is the difference between an equa-lok and a traction-lok??

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Moneymaker
Administrator

Posts: 19751
From: Lyons, IL, USA
Registered: May 99

posted 01-01-2002 01:27 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Equa Loc is the original FoMoCo "posi" unit from the sixties Pete. It is pretty ****ty. Two pinion and only two clutches. Traction Loc was introduced in 1968 for the 69 model year production. It was a good compromise between the slip prone Equa-loc and a not so forgiving Detroit Locker. 4 inion and 4 clutches. Super unit. Your C7 rear is probably cast C7 as that would have been the introduction date.

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Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
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mellowyellow
Gearhead

Posts: 5739
From: So. Fl.
Registered: Aug 2000

posted 01-01-2002 07:43 AM     Click Here to See the Profile for mellowyellow     Edit/Delete Message   Reply w/Quote
Yeah, it is. With the date, I thought it was a 67 actual cast date, but a guy on V-M.com, goes by name of [email protected] posted a link to his page on rear ends. He discussed at length the different ones and in writing back to me said that my unit was probably a 77 build date. He also said that it would still have the C7 casting #. An informative site for a person who doesn't 'know his rearend from a .... .. ... ......' LOL! Thanks!!

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