gusco
I finally crawled under the Colorado, I'm old & got bad knees, but I got under there and find that inside of brake backing plates is about 56" to 56 1/2"----not too scientific a measurement as it was late evening and I was all alone under there ---- knees were sore anyway, from tilling the garden most of the afternoon.
Hope this helps---note that mine is a 2wd. Most are 4wd and dimensions may differ.
delky
