Hi all, I am currently, and slowly, rebuilding my 1500 spitfire. I have cleaned out the differential but forgot to take down, accurately, the number of turns the castellated nut came off....LOL...upon tightening, I think i may have over tightened it....... I have a replacement collapsible washer to hand. Questions. To what torque measurement should I tighten the castellated nut? Upon loosening, how can I buy, borrow, make a tool for measuring the pre-load? Can these measurements be taken with the inner axles in place? All help and advice would be most appreciated, once the head shaking and rolling of eyes has subsided. On a separate issue, how can I access the universal joint on the pro shaft? One end is encased and I am not too sure which way the thing pulls apart. Many thanks Mark