MOS- 5S9F40 – Moser Engineering 40 Spline Steel Spool for a 9” Ford 3.250” Bore Case

The MOS-5S9F40 is the Moser Engineering 40 spline steel spool for a 9” Ford 3.250 bore case. Moser designed these spools to be both strong and light weight and manufactures these spools in the USA.