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posi

  1. Can someone help me identify

    Drivetrain & Performance
    I've got a 79 nova, hasn't been on the road since '98 and last week first time driving it since spending 4 years rebuilding it. Was told it used to drag at a local 1/8 mile. Axle seal started leaking so I'm gonna replace bearings and seals and when I popped the cover off I found this clip in the...
  2. Upgrading 10 bolt 8.5 rear end

    Drivetrain & Performance
    Hey guys. I have a 72 Nova with the stock 8.5 rear end and 2.73 gears. I am looking to upgrade from the one wheel wonder to an Eaton posi, 3.42 gears, and Moser 30 spline axles. Since I will be doing the rebuild myself, I am currently looking for parts. After checking out sites like Jegs and...
  3. 8.5" 10 Bolt Open vs. Posi Spider Gears

    Drivetrain & Performance
    Hello everyone, I purchased a 8.5" 10 bolt a while back with posi and 4:56 gears; the spider gears in the posi need to be replaced, there is a big chip in one of them. Everywhere I look it seems you can only buy spider gears for open rear ends only. This may sound like an ignorant question...
  4. 63 chevyII Differential

    Drivetrain & Performance
    I've got a 1963 nova with a 3.08 open/non-posi. I'm having axle bearing problems and I was wondering if I should replace the carrier and do the bearings all in one shot or just do the bearings and drive it till it pukes. It's hard to find a quality diff that fits my car. I found a 3.08 posi...
  5. What is the quickest way to add positraction to my car?

    Drivetrain & Performance
    What is the quickest way to add positraction to my car??? As you can see in the video, it needs it badly. Thanks! GerryLP:cool:
  6. POSI preference???

    LSx Forum
    OK guys, I have about 700 miles on my LS1 swap and I am ready to change the rear end ratio. I plan to do it myself this winter. I have a stock 63 wagon rear end, I'm guessing 3:55 and I'm going to install a 3:08 and a POSI or limited slip. The reason for the drop in ratio is I'm running the...
  7. Rear end swap

    4th Generation Nova's
    I have 1978 nova 496bb 400 tranny with a 10 bolt 8.5 ring with limited slip. I'm looking to beef up the rear end. To change it to posi would be around 500 bucks. I read a post from another member that a 77-81 z28 rear end would bolt up. Can anyone confirm this or any suggestions on what I could...
  8. What should be considered w/rear gear change?

    Drivetrain & Performance
    I'm looking to get a little more "seat of the pants" excitement out of my stock 71 without spending a ton of money and digging into the inner workings of the engine itself. So far I've switched from 2bbl and stock intake to 4bbl and aluminum intake and that's helped a bit. I'm also going to be...
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