I was going to replace our shocks last January. We were noticing a lot of porpoising on the coach. I read, on the forum, that you all like the Koni FSD's, and had the wife all aboard for the " plunge ". Just for grins, I reread the PO's service records, and lo and behold, HE had installed Konis 9/28/12 at 47560 miles. They were gold....FSD's.!!!! Soooooo........we were in the BIg Tent at Quartzite, and I came upon the Koni display. I asked the rep if I should be having this type of issue with shocks at this time ( we were probably at 130,000) miles. We are currently at 136,000. He told me that the Konis were guaranteed for life. YEAH !!!! So today, I googled the warranty, and......it's only good to the ORIGINAL PURCHASER !!!!!?????!!!!! BUMMER. Sooooo......we JUST spent LOTS of CB's in Nac between things the coach needed at MOT and some new TOYO's. Should I be having these issues with the shocks? Is there a way to test a front shock to see if it is " shot"?? I know that they aren't fun to remove, but, hey......What say you??
Start by checking them visually-- any leaking (not just damp, but leaking)?
Bushings OK?
Before doing anything else, if still in Nacogdoches I would ask Keith or one of the other techs to go on a short test drive with you. Yes, you could pull one or more off and send them to Koni to be tested (last resort IMO).
Glenn, where did you get your Toyos in Nac?
Glenn,do you have the reciept for the Konis?,if you do you have just become the original purchaser,get the drift.
Agree with John with receipt I don't think they will ask for your id.
Before you replace them,Go to the Koni Website and look up how to adjust them firmer. You should be able to remove the lower,easy to get to bolt,compress the shock and turn it to a firmer setting. I found this out after I replaced mine with Gabriel I was not going to spend 700.00 or whatever on shocks. So Before You Buy Try....Adjusting. By the way I love my new Gabriels I put on the front of my coach!! It Rides way way better and the price was 1/3..jmo
Here see if this applies to You..
Koni Shock Part Numbers and Adjustments (https://wiki.foreforums.com/doku.php?id=technical:chassis:shocks#how_do_i_adjust_my_koni_shocks)
Unlike the old red/orange Konis that came on the OP's coach, Koni (gold) FSD shocks are not adjustable.
I got the Toyos at Herman Power. There was a FT in front of me, older, no slide. He put 177 G rated on it. Put 177 H rated on mine. 14 ply vs 16 ply, according to Greg. So far, driving from Nac to McKinney, I like them.
Unfortunately, the PO paid someone to install " owner provided" Koni's. I don't have the purchase receipt in his paperwork, or I WOULD be the purchaser. Unfortunately, also. I had Keith check LOTS of things, but overlooked the shocks. Oh well.
Glen have you had your axles weighed, the porpuising might be a weight distribution issue. Or overhead compartments filled with heavy stuff like canned goods or books. Incorrect tag axle pressure if you have one may be suspect. Or front air bag pressure too low or too high. Suspension system has to stroke to work.
This is easy to do but make sure you actually have the Konis on the coach,should be painted gold and say FSD and is the bill for
8 shocks.
It's the WINE you haul around.
And, sounds like you, being a really good friend are offering to help him solve that problem. Awesome.