I'm not sure how to work around this issue...but there is a slight difference between the M62TU used in the e38/e39 sedans versus the M62TU used in the e53 X5 (the e53 engine has a different BMW part nbr versus the e38/e39 sedans which use the same engine part nbr). The
front drive shafts run thru the oil pan (on the e53) which was done to help create a lower center of gravity,, maintain the 50/50 weight balance, and to fit the front AWD stuff.
Just thought Id mention this little kink (in case you didn't know) before you buy an M62TU from an e38/e39 and get a big surprise...see the text highlighted in yellow below: