I just got this sent to me from.
<blockquote><hr size=0><!-quote-!><font size=1>quote:</font>
As Per Jim Chabot
The 73 should have a grille that looks striped due to the pattern in the expanded metal while the 72 grille is uniform.
The 73 has a white dash while the 72 was yeller. You can check for color by making a small
scratch in it or look underneath. While yer under there taking a peek at it, the 73 dash is
removable while the dash on the 72 is welded to the pedestal.
The 73 will have some bolts with a wp marking on the head while the 72 used IH bolts
exclusively.
The 73 has cloth and rubber covered wiring while the 72 used thermoplastic insulation.
There may be other minor differences, but they escape me at present. <!-/quote-!><hr size=0></blockquote>
<blockquote><hr size=0><!-quote-!><font size=1>quote:</font>
As Per Jim Chabot
The 73 should have a grille that looks striped due to the pattern in the expanded metal while the 72 grille is uniform.
The 73 has a white dash while the 72 was yeller. You can check for color by making a small
scratch in it or look underneath. While yer under there taking a peek at it, the 73 dash is
removable while the dash on the 72 is welded to the pedestal.
The 73 will have some bolts with a wp marking on the head while the 72 used IH bolts
exclusively.
The 73 has cloth and rubber covered wiring while the 72 used thermoplastic insulation.
There may be other minor differences, but they escape me at present. <!-/quote-!><hr size=0></blockquote>