All the power is transferred through the disks. And the six bolts per disk is all there is until you do the support and bearing. And two guys would be good, I think you would be able to do the diff mounts yourself and save the shop fees, They're not all that difficult. a couple of ramps, or a floor jack and some jack stands. Good luck and have fun!!

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Thanks, Nels
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86 300E
93 W250 4X4 Cummins Power
72 F250 Highboy
89 S-10 408ci BBC
custom V Four Chopper
77 Peterbilt 352
83 Jeep CJ-5