[Richard]

So I finally finished the install, and there are a couple of useful bits of info. First, none of the Koni shocks had any noticeable deterioration in resistance. They are a one way shock meaning compression takes very little force but rebound takes a lot. I don't have a shock measuring machine, my comments are based on the calibrated bicep method. The coach has around 175K miles. The mounting bushings were trashed on the rear shocks.

The most useful bit though is how to remove the front shocks. The upper bolt is somewhat hidden behind the upper swing arm. In order to access the bolt with an impact wrench, the frame must be blocked, the air dumped from the front suspension, and the wheel lifted with a jack. It can be done without a pit, but given the opportunity again, even I would throw money at having someone with a pit do this.

My boltheads were 1 5/16 (33MM) and 1 1/4 (32mm). You will need a box end wrench of both sizes in addition to sockets.

I haven't driven the coach to know if the new shocks all around will address the occasional porpoise I felt on certain freeways.