It features eight crossmembers that are through - welded to the main two framerails for added support. (topspeed.com)
The previous year's ladder - style chassis was replaced by framerails with a central X-member that was «very resistant to the twisting forces that are transmitted to it,» wrote Brock in Hot Rod's Dec. 1957 issue. (hotrod.com)
Each Schwartz truck chassis is based on 6 - inch framerails to increase the rigidity of the entire vehicle combined with proven, modern - designed suspension components. (hotrod.com)