Shackle bushings
On the average do bronze shackle bushings last. I have a fiver that weighs 14500# when traveling. I grease the shackle bolts 2 to 3 times a year and before every big trip.
Forum Discussion
IS suspension is shown on the Mor/yde web site. It is quite deluxe allowing 5 inches of up and down travel , no axles to bend and the ability to do proper alignments without bending anything. It has two large rubber blocks between the fixed arm and the moveable arm and is also equipped with shock absorbers. It is quite standard on mobile suite and not even offered as an option by Keystone Montana. I put this suspension and disc brakes on our Montana. I personally will never buy another heavy unit that doesn't offer these two features. It just isn't right in my opinion to buy axles and brakes to scrap to have a proper set up that should have been there in the first place. A $6000.00 upgrade would probably be $3500.00 at manufacturing time. It's great but comes with a price tag. 15,ooo lbs is to heavy for wet bolt system in my opinion and speaking from personal experience . Good Luck
