I am about to buy some accessories for my truck, but I need some help deciding. I can't decide between a RacerBack cab extension, or 4" stacks 
If any of you have any pictures of either the cab extension or the stacks on a dually to post, I'd appreciate it. I don't have any pictures to compare so I'm kind of stuck
And how hard is it to install stacks? Are there any kits?
TIA

If any of you have any pictures of either the cab extension or the stacks on a dually to post, I'd appreciate it. I don't have any pictures to compare so I'm kind of stuck

And how hard is it to install stacks? Are there any kits?
TIA