my first 742 case rebuild, need alittle advice please

Yes, You are correct, & a call to Randy's or Dr diff etc. should be all it takes.........did You not purchase a master rebuild kit for the install?
No I bought the parts separately unfortunately for us Canadians everything you guys get down there cost us 35% more here plus freight plus brokerage so it's cheapest to source this stuff at the local jobber BUT they don't have the kits but if I can't find the part here I may have to do that thanks