Make sure this fitsby entering your model number. Independent 139 Trucks: Durable, high performance truck for all types of skateboarding. 356 T6 Aluminum hanger and baseplate, solid Chromoly steel axle, grade 8 kingpin, Supercush cushions with cylinder bottom. Featuring superior turn and stability, better grind clearance, improved no hang-up yoke for grind tricks, and less wheel bite. They last longer and are stronger on impact than any other truck on the market. Independent trucks are Made In The USA Amphetamine ABEC 7 8-Ball Bearings! Most bearings have only 7 Balls, this places all impact and sideload on only 1-2balls. Which is the reason so many bearings blow out. With 8 Balls, the impact is on 2-3 Balls, which gives a much faster, stronger bearings.