8 1/4 Gear Change Question

I've got the diff book from Randys in the shop. I'll go get it and be right back with the info..........Here ya go.
8.25
Pinion preload 12-15 in. lbs. (new)
6-9 in. lbs.(used)
Backlash .006 - .010 inch
Ring gear torque 65 ft lbs
Carrier bearingcap torque 75 ft lbs.
Pinion nut torque crush sleeve

Just for reference the torque on the pinion nut on an 8 3/4 742 case is 240 ft lbs

Make a note when dissassembling the unit where the shims were and how many of what thickness and put em back the way they came out. This will give you a good starting point upon reassembly.

Keep in mind that the ring bolts are probably left handed.
Hope this helps.
Small Block