ok, from all the people Ive talked to this is a fluke but I want to be sure. My countershaft (the one the small front sprocket goes on) teeth were worn down to the point where the front sprocket wouldnt stay on the shaft. I put a retainer clip on it as a temporary fix and it worked for a while but the front sprocket eventually just stripped off all of the teeth on the sprocket. Now I have to split the case to put a new counter shaft in. Im worried that this will happen again, Has anyone had any problems with the counter shaft teeth weraing out? To the point where the sprocket comes off (it would have a little play and it would wiggle until it aligned with the teeth then just pop off and yes the retainer on the front of the sprocket is on, the teeth on the sprocket just got worn.) Ive talked to several mechanics and no one has ever heard of the teeth on the countershaft wearing out and the sprocket falling off, so I hoping its just a fluke or something the previous owner did, and I wont have to replace countershafts every 2 years.