I ordered a new idler arm for my 1961 C10 Apache. The new idler arm taper pins are longer than the original taper pins. This prevents the idler arm from seating in the center link or the mounting bracket. Has anyone seen this problem before or know of a different part number I should get? The part I ordered is 76-605. The Classic Parts guy said that is the only idler arm for the 61.View media item 7262View media item 7261