i really dont think parts are available, most people i know just replace them when they fail or in your case, are missing parts.
any d30 out of any cj from 82-86 will be the same as yours. you could get the hubs for a pre 82 and switch to 6 bolt hubs (stronger)
heres a link of different aftermarket ones http://www.jeep4x4center.com/jeep-hubs/locking-cj5-cj7-cj8.htm
i personally would go with the superwinch, as they are only 1/4 turn to engage/disengage
'01 TJ 4.7/NV3550, 2" lift, 35's, locked.
'79 CJ7 stock, 304
'98 XJ sold
'79 CJ7 sold
'82 CJ7 parted
'89 MJ sold
SSG David Mejias, SSG Eric Vick, SGT William Bowling, SGT Robert McDowell
1 April 2007
Rest In Peace Brothers