2057 is brighter in lumens and has a slightly shorter life. They interchange fine, maybe a possibility of extra heat distorting a lens in a housing that is small. I have not had that issue with mine. Mark Price Morgantown, WV 26508 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II "I realize that death is inevitable. I just don't want to be around when it happens!" ----- Original Message ----- From: "Joe Fulton" <piper_pa20@xxxxxxxxxxx> To: amc-list@xxxxxxxxxxxx Sent: Sunday, May 31, 2009 5:00:14 PM GMT -05:00 US/Canada Eastern Subject: [AMC-list] 1057 vs. 2057 What's the difference in these two tail-stop light bulbs? I have ended up with many 2057 (from dismantled cars and such) but it seems the old AMCs take the 1057 or 1056. Regards, Joe Fulton _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com