Chryslerkid, Ifworking on a very similar setup, just wish i could find a sure grip for my 8.25 that was affordable... Oh well, gives me something to keep after.
There used to be Trak-Lok diffs from jeeps all over evil bay for cheap. I scored a near zero mileage take-off from an offroad shop for $180.00 about 5 yrs ago. I still run it in my 3:55 geared 8-1/4 and it works great.