
Monoblock III was and still is one of the nicest wheels produced by Brabus; they were and still are a wheel that is hard to get. – Brabus Monoblock III on Lexus LS400

had to be persuaded to fit on the LS by way of re-drilling and adding spacers . – Brabus Monoblock III on Lexus LS400
“Brabus Monoblock III 20×9.5 +17 (after 18mm spacer), 20×9.5 +5 (after 30mm spacer)
F:245/30/20 R:245/35/20”
– ClubLexus user user ryhi

Specs:
1996 LEXUS LS400
Factory air suspension
R-Spec Datasystems height controller
Wheels
Brabus Monoblock III
Front: 20×9.5 +17 (after 18mm spacer)
Rear: 20×9.5 +5 (after 30mm spacer)
Tires
Front: 245/30/20
Rear: 245/35/20
Sources:
http://www.cardomain.com/ride/3220487/1996-lexus-ls
http://www.clublexus.com/forums/lexus-vehicles-classifieds/437726-1996-ls400.html