I did a similar conversion several years ago to my 14.4 DW054. But I went the 3/8" drive route. In looking at the parts breakdowns, I found the older 12v 3/8" impact nose piece was the same as my 14.4v so for about 15 bucks i just got the anvil, pulled the four screws off. then I disassembled the QR bit holder and was able to swap the parts. It works good for my quads etc. Especially with the 14.4 lithiums. At the time there was not a 3/8 drive 14.4v, now they have them. Still would like to see a strong ratchet base similar to the angle drill.