« Last post by BlueBlaze on June 16, 2018, 08:21:21 pm »
I did some more testing this week, after driving it around some. I added air in 10 lb increments, while measuring for a change at the tow hitch. This time I found some change, but it seems to be more because of where I measured it than anything else (it still measured about 33" at the wheel well).
Starting with an empty coach, no water in the tank, and zero psi, it measured 14.0". Every 10 lbs added about 1/8", up to a max of 100 psi and 15.5. 30 psi (the minimum allowed) was 14-3/8". The maximum lift was only 1-1/2".
So then I filled the water tank (to add 382 lbs on the back wall) and tried again.
At zero PSI, it measured 13-5/8" (3/8" of sag). It still added about 1/8" for every 10 psi until I reached the maximum 100 lbs and 15-1/8". So the maximum change was still 1-1/2". (I know those numbers don't add up to exactly 1/8" per 10 lbs, but it's close).
Bottom line -- I simply didn't get any improvement worth the $400 I spent. However I can say that at 40 lbs, it did level the coach to the same height without water, so I guess the bags did what they're supposed to do (just not what I hoped they would do).
I double-checked the installation and could find no errors. The springs appear to be stock, but I'm not sure I could tell if they weren't.
The kit is Firestone W217602061. Maybe there is a different kit that would give a better result. But in any case, I would definitely recommend against wasting your money on this kit if you are looking for improved ground clearance on a 2350 coach. Maybe it would be worth it on a coach with a longer overhang than the 2350's 8 ft, since the leverage effect would increase the rise.