No the BDEMU that I'm referring to is for CEX not for DEX. Give it a try because the worst thing that will happen is it will give you an error trying to load.
try checking to see if the tools needed for drive remarrying can only be run in 3.55, someone might have a few tools that works in 4.xx
i've never heard of any , but that dont mean they dont exist.
i still reckon your best bet is to downgrade to 3.55 and remarry the drive properly, then update back to 4.25rex.
ok its a lot of hassle, but its possibly your only solution.