Having hard time reading what the numbers are on my rear axle housing any guesses?? It is on my 47 1.5 ton. I'm gunna say whoever had the punch set that day was hungover or just wanted to have fun, either way I can't figure it out

[IMG]http://i830.photobucket.com/albums/zz228/jhchevy51/20150410_183420_zpsqy7hn6rc.jpg[/IMG]


1947.5 Chevy 4100 red primer
1951 Chevy 4400 grey primer