These are the standard. Top of the line compression strength and hardness means that when you set your alignment - it do esn't change. NOTE: Ordering one Part Number supplies six sh ims in a box. When placing order spring pad length and width are needed. California Residents WARNING

• If using Z Blocks or axle spacers spread load to prevent shim from crushing with #10798 HD spacer plate
• Manganese Bronze construction provides top compression strength and hardness
• Width - 4", Degree - 2.5°, Length - 6.5"
• Over-the-road Heavy Duty Truck shims