Model number is this on my Service Parts Identification sticker
KE10734
So I searched the place for some assistance.
I find this link
http://67-72chevytrucks.com/Chevyear.html
If I follow the model number section...the 3 in my model number does not make sense as this is supposed to be the model year.
Also..What is a "cab to axle dimension?"
Here is my sticker