Our billet aluminum blocks are installed between the leaf spring and the trailer axle to raise or lower the ride height.
These 4000lb-7000lb heavy axle kits include 9/16" (1.42 cm) diameter grade 8 u-bolts for a 3" (7.62 cm) diameter axle tube. Blocks are 6061-T6 Billet Aluminum. Fits 1-3/4" (2.54 cm) wide leaf springs.
Each kit includes 2 Trailer Blocks, 2 Tie Plates & 4 U-Bolts for 1 axle.
Length : 4" (10.16 cm)
Width : 1-3/4" (2.54 cm)
Height : Select on dropdown menu
* Height is the desired amount of ride height adjustment.
Center Reference Pin Head Height: 0.438" (11.12mm)
Center Reference Pin Head Width: 0.656" (16.66mm)
This option includes Type II Anodizing and is ideal for trailers that see use in salt water or harsh northern winter conditions. If you select the Anodizing Option, the Trailer Blocks in your order will receive the special treatment. The appearance and texture of the Trailer Block is changed as it undergoes the anodizing process. This surface technology is designed to help prevent galvanic corrosion between two dissimilar metals. 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.
Do you have a heavy duty application or need a lift or lowering block in a size that is not listed?
We can develop custom kits and block sizes in most configurations. To submit a custom request please fill out our web form: http://bit.ly/1oD8mcf
After we have the required information we will follow up with you via email.