The high-field susceptibility χ HF of Co 100− x Pd x alloys have been measured by a SQUID magnetometer at 5 K. For the same series of Co-Pd alloys, the high-field longitudinal forced magnetoresistance F MR were also measured in a superconducting-magnet system. Both χ HF and F MR data are plotted as a function of Pd concentration x. We find that χ HF and F MR are closely related, because both quantities are proportional to the absolute value of the orbital angular momentum |〈 L z 〉| in the alloys. The local minimum and maximum positions of both χ HF and F MR can be located. They agree reasonably well with the predictions of gap position x G from the split-band theory, and that of the largest 〈 L z 〉 position x L from the quadrupole scattering theory.