Issue link: https://read.dmtmag.com/i/34500
SPINDLES There are three main spindle types you will encounter when retrofitting MICHELIN X One tires: “N”, “P”, and “R”. ® ® Outer bearing smaller than inner bearing. The best way to determine what type of spindle may be fitted to a given axle is to reference the axle ID data plate affixed to the axle or the suspension ID tag as described on Pages 12-14. The following photos display actual tag placements. N-TYPE SPINDLES (TAPERED) N-type spindles are tapered to the outboard end and utilize a smaller outboard bearing and a larger inboard bearing. Outer and inner bearings the same size. Tag Placement Tag Placement A quick rule of thumb is to measure the hub cap. N-type is usually ~4.5" and the P-type is usually ~6.0". P-TYPE SPINDLES (STRAIGHT) P-type is a parallel spindle design (straight shaft) and utilizes the same sized bearings inboard and outboard. This is generally a heavier duty axle end. N-Type Spindle R-TYPE SPINDLES R-type is a drive axle spindle configuration. The R-type spindle for drive axles is typically straight with bearings of nearly the same size. 16 Truck Technical Specifications P-Type Spindle