(AM-9M) Nut and washer assy. (attaches 4A263 to rear engine support) - M12 x 1.75, 4x4 - w/6.9L, 7.3L eng. & A/T
(AM-9M) Nut and washer assy. (attaches 4A263 to rear engine support) - M12 x 1.75, 5.8L, 7.3L, 7.5L eng. - w/E4OD, M5OD-H/D & ZF-5 spd. trans.