Like the title says...I see them for Fords and Dodge but not for GM?

 

They make them but you need to notch the bed.

 

belltech makes one for the HD. i have one on my truck. stepsides have to bend over a small section of metal thats not noticeable from outside of the truck. i dont see why a fleetside couldnt run one without any modification

 

You guys know where to get em?

 

AIM industries had some at one point.

 

i cut some 2 inch drop shackles and extended them one inch and they actually raised the truck up on my buddys truck..then we just put 4 spring clamps on and then it really lowered the back end..and it really dont ride any different like people said they would

 

I've got two inch shackles and put on spring clamps. The clamps lowered it prolly another inch or so and the ride wasn't affected.

 

Spring clamps will make it ride like crap, I had clamps on for about a year, I took em off last week and it rides so much smoother

 

i had a 3inchers in the back of my truck whenit was static and a stepside box and like TX said above the stepside box has a piece of sheet metal pinch weld that needs to be trimmed and bent flat, but if you have the fleet i think that it would work fine.