I think that your best bet is to approach your local auto parts store or Dealer and purchase the needed parts per the vehicles year, make and model. That is also assuming that the new donor rear is the correct (same) replacement rear. That and there are several seals and bearings associated with the rear end too, so you would have to be specific as to which you need.
There is also a chance that they can cross-ref those numbers of yours, not that they would need to I suppose.
Did you try "google" on the numbers? If they don't show up there, then they probably are no good (incorrect) anyway.
'99 Grand Vitara JLX, 2.5L V-6, 4WD, 5 spd std, '00 "Limited" leather interior
'72 Nova. SB, TH-350, PB, PS, A/C.