Well I removed the front Dshaft on my 84 and spun the Tcase by hand and it makes a pinging sound and also sounds like those old time skates with the metal wheels. It also would bind up sometimes when I would spin it to the left. So what do I do next I've never removed a Tcase before is it complicated and where do I start. Can it be rebuilt or would it be better to get one from a yard.