Never a option for any Maverick... Fords Equa-Lock was a option in many '60s/'70s vehicles with 8" rears(also this term was given to 9" before approx '68)... The Ford Traction-Lock is a improved unit used in 9", in the big engined/HP vehicles...
Agreed.. Up till a few years ago I had one out of a '67 Falcon station wagon I junked... Since I'd had it laying around for 20 years plus, I let a friend have it to put in his son's '65 Mustang... Yeah wish I had it back...
I know with 9 inch rears, you never know what models you will might find a Traction Lok units in - the one in my 9 inch came out of a 6 cylinder 1970 van with 4.11 gears - I have read where you might find an 8 inch one under junked Mustang II's
When we found one in the 6 cylinder van, all we were looking for was a 4.11 gear set for our budget build stock car and the driver/owner didn't have a use for the T-L so it was my gain
AFAIK there were no 8" until the '62 Fairlane introduction... I'd guess chances finding a posi 8" in the junk yards these days are maybe 2% of locating a 9", as basically only intermediate & compact models used them... Probably most likely possibility is Granada/Monarch...
Granada's and Monarchs are getting scarce now too. But if you do run across one, keep in mind they had as a option both a disc and a drum brake 9. Seen two 80 Granada's with the drum nine. 80 was the last year of the leaf sprung rear in these cars. Don't forget the Versailles too, they all had disc 9's. And all the above are 28 spline 9's. . Now I mentioned the Bronco's, the big Bronco's had a 31 spline 9 in them, the small Bronco's had 28 spline 9's . 4WD F series pickups could be either spline count. When I went out to get a 9 for my 77 Comet, the first yard I went to had an 81 Bronco with a 31 spline 3.50 Trac-loc 9 under it for $150 (complete rear) I used the chunk out of it and sold the rest of it.
"Posi" is limited slip. It's Chevy's term for limited slip. All of these terms refer to "Limited-slip" differentials: American Motors: Twin-Grip Buick: Positive Traction. Gran Sport models used the term "Limited-slip" Cadillac: Controlled Chevrolet/GMC: Positraction Chrysler: Sure Grip Dana Corporation: Trak-Lok or Powr-Lok Ford: Equa-Lock and Traction-Lok Jeep: Trac-Lok (clutch-type mechanical), Tru-Lok (gear-type mechanical), and Vari-Lok (gerotor pump), Power Lok Oldsmobile: Anti-Spin Pontiac: Safe-T-Track
My car is not a posi !! But yes when one spins the other joins...not both turning at same time from the beginning like a spool or welded spider gear.
