I have been a lurker and never had an account until now... This site has been a valuable source of info and I thank you all. Now for the question. Several years back, I bought a 1950 3600. It was in multiple boxes in multiple locations and finally got it kind of assembled and running. I dropped in a 350 SBC and 700R4... I know sacrilege but the motor was shot and we (wife) needed an auto trans. I figured the .70 Overdrive would help but it was not enough. Well after a couple years of searching I found a donor 4.10 3rd member and picked it up. It looks good and the gears look fine, however I found that I have about .016 backlash. How important is it to get that down to .008? I am afraid of screwing it up and have not had historically good luck with differentials in general. Years of wheeling old jeeps etc...
