17 Ontario Dump Truck Association wants Queen's Park extend amnesty allowing older trucks to forego expensive retrofits (torontosun.com) posted 3 years ago by Ninki333 3 years ago by Ninki333 +18 / -1 6 comments share 6 comments share save hide report block hide replies
It is a steerable lift axle. It helps disperse road sheering force when the loaded trucks take turns, instead of just having the front steer axle plow through the turn.