Can someone tell me the nags number to replace the 2-pc windshield with a one pc?

I could'nt find any number for a single w/s.My guess would be that it is one of those specially made w/s's.I'm sorry but i don't have the makers address.I would be careful of the bend in the center of the w/s.I have seen a number of these and some of the distortion is bad.Some you need to do a little work to get them to fit just right.Then again some were not too bad.Check one out along with your customer if you can.It's much easier if the customer says"i don't like it"before it's in the car.You can try Jefferis hot rod auto body(805-543-4757)or www.v-butt.com.
Karl

49-52 Chevys and Oldsmobiles shared the same bodies. The Olds had the 1 piece w/s's. Post your model # and I can tell you the w/s # you need. Iowa glass usually has these. HTH