Well this is copy and pasted from S10forum and 67-72chevytrucks and I take no credit for the information below. I figured the information could be helpful to some on here:
(For some reason the pictures will not transfer over, for a quick reference go to this link: Frame Notch Based On Strength...
The community here at 355nation.net urges you to please use caution and seek professional assistance when performing modifications to your vehicle. Before attempting any modification it is advised that you refer to your Colorado or Canyon service manual or contact a certified mechanic...
Here's a photo journal of the mods that I've done to my truck since I bought it. I'll keep the new stuff at the top.
Note: Most of the picture captions are clickable.
Ebony Dash Bezels (04-27-2017)
Luxury Door Sill Plates (04-17-2017)
Clear Corners (round 2) (01/26/2017)