I'm swaping out an H42 with a used H41. Opened the H41 up and found a spring from the #1 synchronizer ring subassembly on the bottom of the tranny. Everything else looks good. Checked two H42s and they did not have any of these springs. Two questions: 1) Can these springs be replaced? I can't find a part number or source. 2) Can transmission be used with a missing spring? Thanks