Bestop is the company that makes the OEM tops for Jeep. The Tiger Top # B5140501 is listed as a custom fit top for 1951 to 1962 Jeep M-38A1 models. I spoke with my contact at Bestop and they only had one measurement that they could give me: 69-1/2 inches most likely from the windshield to the back. I have included a link to the installation details for you to view. view full answer...