s13 housing swap with j30 vlsd internals

[will83]

When doing this swap, putting the j30 output shafts back in, which output shaft goes on which side? currently i have the longer one on the passenger side, and short on ring gear side. Last when its all together the dust cover for the seal has about an 1/8 of an inch gap with the seal on the side with the longer half shaft, but it is fully inserted? is that how it is suppose to be when swapped?