1,6*4 New Trailer Truck STQ4250L7Y9S3 2. Competitive price and excellent quality 3. ... 4.46,3.48,2.71,2.11,1.64,1.28,1.00,0.78Reverse:11.56 Clutch Dry type ... suspensionWith shock absorber,special designed enhanced spring for tractor truckRear suspensionWith shock absorber,special designed enhanced spring for ... .Assistant brake:engine exhaust brake 6*4 New Trailer Truck STQ4250L7Y9S3(Reinforced Model)