Hydrastar® 8K lbs. 4-Bolt Caliper Bracket Spacer (9/16 in., 5/8 in.) Integral, ALKO/Rockwell [303-E8BA] boat trailer and 8 lug standard bolt

and 8 lug standard bolt patterns

• 5-Bolt Brake Flange

Aluminum Swivel Bracket (8)

use these shackles with 1/2-inch diameter bolts

Hydrastar® 8K lbs. 4-Bolt Caliper Bracket Spacer (9/16 in., 5/8 in.) Integral, ALKO/Rockwell [303-E8BA] boat trailer and 8 lug standard bolt8k Brake Flange Spacer Rockwell Alko torsion axles have moved their brake flange in mid 2000's requiring a caliper bracket adapter to be used to properly align the caliper to the rotor. Please note: Dexter Acquired Rockwell American back in 2016 and have since rebranded the Rockwell axle to a Dexter axle. If your Dexter Torsion axle was manufactured in Plant City, FL you will need these adapter to properly mount your brakes to your axle. Need Help?