Differential jdm s13 and usdm s14 into a s13

[MasterOFDrift]

well here is the deal I have a s14 with most likely a s14 cross member. The owner prior to myself did the 5 lug conversion. Well today I took out my differntial abs s14 vlsd. well I also have a s13 jdm differential with a nismo lsd in it. So here is my dilemma the s14 has 2 carrier bolts while the s13 has 4. my cross member only has two holes for the carrier bolts. The covers of the differentials do not look like they will be interchangable. Any ideas to what I should do? Or any ideas what cross member I have? here are some pics

first is the two diff side to side the one on the left is the jdm s13 while the one tot he right is the s14 vlsd.