5 speed manual transmission, both years.
4 speed automatic w/ ATC, both years.
5 speed steptronic was standard on the 540iT, both years.
The only E39 that has LSD is the M5, doesn't matter if it's a 525, 528, 530, 540, stick or auto all non-M E39's has open diffs.
Either write something worth reading or do something worth writing.
2001 530iA Steel Blue/Sand - Sport/Premium/Cold Package
1999 528iA Jet Black/Black - Sport/Premium/Heated Seats
1999 528iT Cashmere Beige/Sand - Sport/Premium Package - 5 speed
1982 Fiat 2000 Spider - Blue Metallic/Blue