Yes, there was a sp 40 all crop
There was a self propelled 40 all crop made.
Was it officially made by AC, well no....
It has a standard 40 with a AC "G" drive train mounted on top.
Somebody's special project, kind of neat though.
Here is a link to photos, wait for the page to load and scroll to the bottom
This unit sold in 2008 at auction.
Aumann Auctions, Inc. - Mrotek Allis Chalmers Collection
Last edited by buckeyefarmer86; 06-29-2012 at 02:37 PM.