Welcome to the 'Bolt!
They aren't the same. One thing that I do know is that the runningboards on a '41-'46 are 1 1/2" longer than a '40. Also, the '41-'46 firewall of the cab protrudes foward 1 1/2" compared to a '40.
Last edited by steppenwood; 07/30/2008 12:45 AM.
