3 Jaw Chuck

My first attempt at buying a chuck didn't work out too well. I forgot to make sure it was a plain back and it ended up having integral threads. So I had to return it. My second attempt worked out well.

For a pretty good price I picked up a nice Burnerd 5" 3 jaw universal chuck on eBay. It's a plain back, and it had a 1 1/2" x 8 adapter plate already on it.  I took it all apart and cleaned out the old chips and grease and lubed it all up with way oil.

Besides some wear on the ring and a few chipped gear teeth on the pinions it is in good shape. Luckily the chipped teeth don't affect the function as far as I can tell. 

Since the 1-1/2" x 8 backing plate is smaller than the 1-3/4" x 8 that the Clausing has I believe I might be able to re-bore, and re-thread the plate. That way I don't have to buy another backing plate. 

I did buy a brand new backing plate with the correct nose thread from AMTOOLS but I think I'm going to use that on a new 4 jaw chuck when I get one.