New diff is in, took much longer than anticipated, no bolt goes easy on the undercarriage of a 147,000 all year car. Broke two ratchets alone on the bolts that hold the brace that supports the rear cover of the diff to the car. Impact wrench needed there badly.
The diff installed was a used 3.73 trac lok, being that it was snowing and the roads had about two inches of fresh snow, impressions were limited. The gears do make some noise, I used mobil conventional gear oil with whatever brand posi additive the car parts place had, do I want to go synthetic? Different additive?
On a final note, I wanted to point out the reason why I continue to frequent this forum even though I don't drive an SC anymore. I sent a PM to one of the members here asking a Mark VIII specific question and if he could, to give me a ring since I was using my phone to browse this site (slowly) and working on the car. Not 10 mins later, I get a call from that member, answering my question, offering some tips, and generally making the process a whole lot easier. Kudos Doug and everyone else who has offered their assistance, I appreciate the help, would have been in a world of hurt without it