Blocks for 3000lb-7000lb axle - 1-3/4" wide spring Select Anodizing Option:Not Anodized Length: 4" (10

Length: 4" (10

08 cm) by 3" (7

The process artificially oxidizes the surface of the billet aluminium in a controlled manor which helps to electrically isolate the Trailer Block from the steel it is in contact with on the axle and leaf spring

Blocks are  6061-T6 Billet Aluminum

08 CM) by 3" (7

Blocks for 3000lb-7000lb axle - 1-3/4" wide spring Select Anodizing Option:Not Anodized Length: 4" (10The billet aluminum blocks are installed between the leaf spring and the trailer axle to raise or lower the ride height. Each order includes 2 Trailer Blocks. 6061 T6 Billet Aluminum Fits 1 3 4" (4. 45 cm) wide leaf springs Block Length: 4" (10. 16 cm) Width: 1 3 4" (4. 45 cm) Height: Varies by selection (Your desired ride height adjustment) Center Pin Head Diameter: 0. 656" (16. 66mm) Height: 0. 438" (11. 12mm) Installation Instructions Anodizing