- Size Guide
Spring Seat for axle assemblies using 3″ outside diameter tube. Can be used with either 1.75″ wide leaf springs or 2″ wide leaf springs. Weld on installation.
Axle Tube Size: 3″
Capacity: 3500lbs (with heavy duty tube options), 4,400lbs., 6,000lbs., 7,000lbs., 7,200lbs.
Use with: 3″ U bolt kit part # APUBR-8
Note: 2 spring seats are required for each axle.