brand Guest Jan 15, 2002 #1 Here's what I can think of. The 23's had auto climte control in the cab and higher horsepower engines than the 21's. The air cleaner setup also may be a little different.
Here's what I can think of. The 23's had auto climte control in the cab and higher horsepower engines than the 21's. The air cleaner setup also may be a little different.