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posi

  1. 1966 Mustang Rear Upgrade

    Classic Tech
    I am doing my first restomod on my 66 Coupe. Im swapping the C4 out for a T5 and im going to do some work to the 289 to give it some extra juice. Ive never done any work to the rear on a car but im pretty sure mine has a stock 8 in. I dont think it is posi and I dont know the stock gears. Any...
  2. Locker or Posi Unit?

    Classic Tech
    I just picked up a entire center section, for a 8 inch rear end, up last night for 60 bucks, still has the gears in it, that came out of a 1965 (maybe 64) Flacon Sprint. I got this for my 1965 mustang, and was told it was a posi. When i got to the guys house we took the center section off the...
  3. Buying a 7.5 Posi Unit, Auburn or T-lok?

    2005-2010 Mustang Talk
    I am looking at buying a local posi unit I found on Craigs. There are two options available: a T-lok unit with 86k for $125 (told was still tight) or an Auburn unit with 27k for $200. I'm assuming the T-lok is a factory Ford deal from the context. Searching around online I found many horror...
  4. First Time Racing at the Drag Strip.. Traction Issues

    2005-2010 Mustang Talk
    Tonight I went down and raced with the younger crowd at the local quarter mile strip 6-8 which then turned into the local big boys after 8. I had a ton of fun bracket racing with the younger guys and actually came in second :bigthumbsup Only issue I had was I broke out hard on the last run with...
  5. 1991 2.3 5-speed posi rear help!

    2.3L Tech
    hi everyone I had another question will a 8.8 posi rear end from a 5.0 bolt on and drive good on a 1991 2.3l 5-speed. I heard that the 2.3 or its tranny wouldnt be enough power for the 8.8 rear? idk Any help would be great? thankx!
  6. Do I have T-Lock or not?

    2005-2010 Mustang Talk
    Okay so I've always assumed since I have a base model v6 I didn't have t-lock, but I noticed spinning my tires around in the snow this morning that I had snow flinging up on both sides of my car, so I did a little spinny in front of the camera to see what was up. The previous owner could have...
  7. 1990 Mustang GT Rear Driver side Wheel

    Introductions
    hey everyone this is my first post and im looking for some help with my mustang i got an awesome deal on it 1200$ and it fired right up and is in great shape overall My problem is that the rear driverside wheel wont roll foward but will roll in reverse? all the other wheels roll fine just not...
  8. Rebuilding the 7.5 Rear End?

    V6 Tech
    So when i was in the high school league I welded the spider gears together in my rear diff for free posi. It has worked and held all this time but now I want to go to 3.73's because the 2.73's are too high. I can't just change the gears because the whole case is welded. So I might as well just...
  9. Spring Project 3.73 and long tubes

    2005-2010 V6 Mustang Tech
    It is still nice and warm in the garage but having been hit with 2 straight days of rain and +4 degree (C) temperatures the modding bug has been hitting me pretty hard. I've managed to put away some cash this winter and for my first two project I could use some input: 1. I want to put a...
  10. recommendation for mods on 2001 Mustang GT

    4.6L Talk
    On a 2001 Mustang GT Auto, what would you recommend as an inexpensive yet effective mod for more power and a more pleasant driving experience. Typically what is the cost of converting to a POSI rear? I think this is something I would want to upgrade to.
  11. Gear instal with trac-lok

    V6 Talk
    I want to install 4.10 gears and a Trac-Lok but wherever i go they want to charge me 400 bucks and up just for labor!!!! its bad enough the parts alone cost $500 dollars!!! thats at least 900 bucks on parts and install!!! I know there are shops out there that can do it for less. I was hoping u...
  12. Just bought my gears/ install?

    2005-2010 Mustang Talk
    well i finally pulled the trigger on buying my gears and i really didnt feel like droping in a 8.8 and really i thought to myself how long it will be until i get a supercharger or a turbo so i went with the 4.10s, it may be a year or 2 before i get Fi, so i can always change to 3.73's once that...
  13. Does the 96 GT have a limited slip differential?

    4.6L Tech
    So I'm going to replace my rear end gears, but I don't even know if I have a limited slip (posi) rear end on my 96 GT. It would seem silly to build a performance oriented car without such, but hell, they also put 2.73's or something ridiculous like that in there from the factory. It seems that...
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