What you have is a '51 and later spare carrier. It mounts diagonally under the frame with two crossbars (you have one of them). You're also missing the bracket that mounts in two of the row of holes opposite the large plate. It goes in the set of holes that match the wheel size. Here's a photo of the bracket. [on edit] it appears from looking at the FAM, that bracket is only used on larger trucks, not 1/2 and 3/4 tons.
If you have a Factory Assembly Manual, Section 10, Sheet 2.0 has a diagram of how it mounts. The end that you have attached to the crossbar goes on the driver's side of the frame, and the wider end goes toward rear on the passenger side.
I think you could use it unless you're looking for a year-correct one like Harold posted above.
Last edited by klhansen; 06/11/20191:14 AM.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
