1/2" diameter
Thread - 1/2" x 26tpi
Overall Length - 8 5/8"
Thread length at fixed cone end - 2 7/8"
(on above thread at end of thread is a 5/8" diameter x .175 wide "boss" or "stop" which the fixed bearing cone sits against)
Thread length at adjuster cone end - 2 3/4"
Un-threaded central section of spindle - 2.825"
"Flats" on either side of spindle (top and bottom) approx 7/16" wide and approx 7/8" in from each spindle end on threaded portion.....this is to prevent the spindle rotating when adjusting the bearing cone...spindle should fit snugly in rear frame slots.....
The WD workshop manual for the ML is very well illustrated with exploded views of the wheel hubs.......