Posted by Chris Case [75.36.37.164] on Thursday, April 25, 2013 at 20:50:44 :
In Reply to: Wm300 vs WDX posted by Sterling from Texas [166.147.72.157] on Thursday, April 25, 2013 at 20:40:23 :
There were two GVWs. 7500 and 9600 IIRC. The heavier spring probably settled less than the lighter ones, being that the trucks were probably empty for most of their years.