I've search high and low for this info and have not found the answer...
I have a Moser 12 bolt with performance cover, 3:73 spool, it's 5 years old and about 10k miles on it.

Questions:
- What are the torque specs for the 12 bolt performance diff cover?
- What are the torque specs for the pre-load?
- lastly, I'm planning on using Royal Purple 75w90 but I've found comments on line about not using synthics. Should I go with RP or conventional?

Thanks for you help in advance

 

Here ya go...(Generic info since all of these style covers are basically the same)

http://store.summitracing.com/instru...dsc%2D1a%2Epdf

My last "spooled" car used synthetic gear lube with no ill effects. I honestly only used the high dollar lube because I had spent some much cash on the spool, gears, axles, etc...

Nice looking car BTW...

 

Thank you very much for this write-up...just what I needed. Nice ride back at you