Will a 4wd cars fuel rail fit straight onto a 2wd car? reason i'm asking is that I keep getting leaks from the short rubber pipe between the fuel rail and pressure regulator on my 2wd (I've had 1 small fire

) and I thinki 'm right in thinking the pressure reg on the 4wd rail is bolted straight on the end so will do away with this problem?
Cheers for any info
Steve