I have a Delta 36-070 and a 36-240 miter saws that both need the plastic blade guards. How can I identify whether they are Type 1 or 2 for the 36-240 and Type 1,2 or 3 for the 36-070? Also some parts indicate that they are for the early models only, how is that determined? It looks like I can't get the 36-070 blade guard but if I can figure out the proper model type, the 36-240 has a chance. Also if anyone has a broken one of either of these saws and wants to part them out, let me know.