ft. lbs. for Final Drive bolts?

Getting my transmission back together soon I hope
Not sure on how mogh to tighten the bolts holding the Final Drive to the LSD.
They are the reverse thread bolts, I heard 74 ft lbs and I also heard 85 ft lbs. They were a bitch to get loose, is thread lock needed when tightening them back down?

Not sure on how mogh to tighten the bolts holding the Final Drive to the LSD.
They are the reverse thread bolts, I heard 74 ft lbs and I also heard 85 ft lbs. They were a bitch to get loose, is thread lock needed when tightening them back down?