Traction Problem!

Sure you need a posi but what tires are you using ?? A good set of stickies should work great for you. I have the 40 year old leaf springs with air shocks on my 63. And with Hoosier QTP dot tires it will pull a 1.58 to 1.62 sixty ft times and get air under the left front wheel. You should not have that much trouble hooking up with a good sticky tire. Ron