[lks dcvn]

No Blazer floor yet - you will need to modify the truck floor at the rear where it meets the bed floor step up panel.

It will involve cutting off the rear of the panel (where the gas tank would be) and then bending up the rear floor to meet the rear floor. If you have the stock floor you can see how it should look when you get done.

Watch the progression as the 'cab' floor meets the step up and the bed floor in the pix below. The last picture is how it should look when you get done.