Hi all, I attempted to replace the fork seals on my 76 cb750 and the left seal wouldn't fit for the life of me, the right side went right in without any problems but the left side seems the the leg is a slightly smaller size, these forks are off of my late 71 early 72 cb750, is it possible that the right leg might be slightly newer and the left is an older model? I'm stumped, I put the old seal back in for the time being just to make it a roller again, any help would be appreciated, thank all.