Kit for 2500lb-3500lb square axle - 1-3/4" wide spring Select Anodizing Option:Not Anodized Length: 3" (7

Length: 3" (7

Each kit includes 2 Trailer Blocks & 4 U-Bolts for 1 axle

95 cm) diameter grade 5 u-bolts for a 1-1/2" (3

Blocks are  6061-T6 Billet Aluminum

These 1200-1800lb axle kits include 3/8" (0

Kit for 2500lb-3500lb square axle - 1-3/4" wide spring Select Anodizing Option:Not Anodized Length: 3" (7Our billet aluminum blocks are installed between the leaf spring and the trailer axle to raise or lower the ride height. These square axle kits include 9 16" (1. 42 cm) diameter grade 8 square u bolts for a 2" (5. 08 cm) diameter axle tube. Blocks are 6061 T6 Billet Aluminum. Fits 1 3 4" (4. 45 cm) wide leaf springs. For 2" (5. 08 cm) square axles. Each kit includes 2 Trailer Blocks & 4 U Bolts for 1 axle. Block Length: 4" (10. 16 cm) Width: 1 3 4"