Just a word of advice.

If you have or plan to get the "Reese no-drill mounting brackets" for a 5th wheel hitch, it will be impossible to replace the right rear shock without removing the bracket.
The problem is, you can't get the top shock bolt out. There are two ways you can maybe fix this problem.
1.You might be able to simple reverse the direction of the bolt BEFORE installing the bracket.
2. You could drill a hole in the bracket big enough for the bolt to pass through. (Probably have to be 1 1/4 inch hole)

 

I did finally got that fourth shock replaced without removing the bracket.
It's not easy, but it can be done.
My advise...If you are going to use this bracket, and you are thinking about shocks. Do the shocks first.