SoCal Kevin wrote:
I recently replaced mine proactively since they were 15 years old, very weathered and cracked.
What I learned was that one of the mounting bolts was just as expected - nut and bolt through frame rail. Easy.
The other bolt that held the air spring to the mounting bracket was underneath the frame when mounted and was a slotted screw type bolt. I forget the specific name... In order to remove this little bundle of fun I had to use an impact screwdriver and lots of pounding. Not fun at all. Replacement purchased at ACE Hardware.
That was the most difficult part of the operation. Otherwise, just ensure your airlines and fittings are clean and correct when you put them back. No need to over tighten to get a good seal.
On another forum, an owner had his air springs replaced and one blew out because it was slightly twisted (manufacturing defect). I carefully checked mine to make sure there was no twist at all - no problems. Just wanted you to be aware.
Purchased mine from a truck supply house. They were less expensive than an RV place and were a direct Firestone replacement for my original Firestone springs.
I had a friend who was a heavy equipment mechanic say the air springs never blow out and despite their appearance (mine were toast) they are very thick and very tough. Well, I cut one open after removing it and I will just say that I am glad I replaced them.
By the way, my original air springs would leak down over a matter of days. The new air springs will stay inflated for many weeks. Maybe it is just the after effects of having done the replacement, but I swear my ride is better now too.
Sorry for the longish response, but wanted you to know what I found during my adventure. Good luck - the peace of mind will be worth it.
Kevin,
Thanks for the informative overview. Much appreciated.
