My whole life I have battled with starters and front wheel bearings. It seems that everytime something quits me it's one of the two.
I had been fighting with a starter on one of my tractors off and on now for a year. It click a few times then start...finally it got progressivly worse. I finally got pissed because it wouldn't start. I came in and ordered another off eBay. No big deal I got another tractor until then. So I jumped on it and the starter just spun and didn't engage. Erg!! Two starters in one day!!