For a Rabbit, it's fairly easy. The fuel pump kind of gets in the way on the pass. side, and if you're brake lines look crusty, it would be a great time to replace them, as pulling down the beam could make them worse. I put the rear of the car on jackstands, disconnected shocks from the beam and lowered them beam down using a floor jack in the middle on the beam from behind. there's 4 bolts that disconnect if from the chassis. I also replaced the long bolts that the beam pivots on, that run through the bushings - very cheap, everything else in self-explanatory.
PJ
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83 Rabbit GTI - future ITB