Ave searched but didn't see this covered....I am going to swap fluid out on my 01 4.4

Front and rear diff. M1 75-90 do I need the limited slip formula? Also can I use redline D4 for my transfer case? Or any suggestions on transfer case. Thanks for your help!,

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2013 X5 35D
2015 F350
2009 E90 M3
2007 GT3
1996 993 C4S
1991 964 Turbo
1994 D90
1989 E30 M3
1988 E30 M3
1972 cutlass supreme


-sold-
1993 E34 S52 supercharged wagon
1988 E30 M3 henna
2002 E46 M3
1997 E36 M3
2001 X5
2006 4.8is
1998 e36 M3 track car
1995 e36 M3 track car