SPECS 1987 Peterbilt 359 Classic It is a numbered truck. This is a video I made of my brother going up a tough hill at the back of the NW Bay road near Devlin, On. He has on a split load of Poplar/Birch and is going to the OSB mill at Barwick, On. He is about 70 000kg here, has chains on his rear axle and has the axles locked up. there were alot more trips where we had to chain up than when we didn't.