Tonno Pro tri-fold cover

[BIRDMAN]

updated with (much) better pictures in post #1

 

[Sid-X]

I have never seen the Tonno Pro but I have a similar trifold on my '08 Sierra Denali but it is a Lund Genesis. It has hold-down clamps that look nearly identical to yours but are in the front and rear which make it really easy to get off when you want to wash out the bed. I looked at a few and the Lund fit the tightest. It has stretched very little over the past two years and still looks good even though I drag my surfboard across it all the time.

 

[IRONMAN]

Did that have the four wheel steering?

 

[Sid-X]

Did that have the four wheel steering?

No, I think the previous gen Denali was though. It is permanent AWD instead of 4WD. It handles great in the snow for a truck that feels like it is suspended on bowls of jello in the front and blocks of wood in the rear.