Building an off road car with LEGO Technic - Christoph Bartneck, Ph.D.
Brickshelf Gallery - An update to LEGO set 42126 with 4x4, V8 engine, and revised suspension and interior. Instructions available at Rebrickable. Much more at thirdwigg.com
LEGO MOC compact AWD crawler (4 wheel drive all wheel steering) by glowytheglowbug | Rebrickable - Build with LEGO
Lego instruction return to center steering 4 wheel drive independent suspension - YouTube