I pulled off the 5th gear cover and saw several chunks of metal in the bottom part of that section. Here is 5th gear. Ouch!
I can't imagine what someone did to shear off that many teeth. Fortunately, the rest of it was in much better shape. Second gear looked a little better than mine, but still had a gap of about .043", so not much better. I looked on MWB, but only found U8 1st/2nd synchos as well as U8 2nd gear. From what I gather, new 2nd gears are not available. I did find new synchros on Obert's but for considerably more than the used ones from MWB. Not sure where to go from here.