In the meantime, if any one has a good guess as to what to call these suckers, I am all ears. A little hard of hearing these days, so you might have to YELL at me to get my attention, seems to work well for the wife.
OK, I'll bite and toss out a few ideas that maybe you've already chased down or not. I've been watching this thread for a while, even Googled some and there doesn't seem to be much of a trail to follow via the OEM path. Oh BTW, there are service manuals on Ebay but do they list P/Ns?
If I was on the parts counter I'd call it a cab mount or a cab mount bushing. I might also call it an isolation mount.
Here are a few of my out in left field thoughts:
1. Talk to an independent truck repair outfit, they may have some ideas on how to hunt the OE replacement parts down. I think that was where
@YotaBota was heading a few posts back. I doubt commercial trucks are going to show up on the the local NAPA's radar so it would be down that commercial truck path. Locally we have a shop called.....wait for it.....
Parts For Trucks.
2. Talk to MOOG or similar commercial supply chain. Measure up the mounts and give them a drawing, it might help.**
2a. AnythingTruck.com might have something you can adapt. Maybe something like
THIS could be adapted to the bracket that your mount slides into or
THIS could be slid into your original mount tube. They have
SEVERAL mounts similar to these. Maybe machine up a mount tube that would contain the cast Freightliner inserts and slide into your original hole?
AnythingTruck.com is nice, they list dimensions of the mounts they have so you can shop to fit.
3. Roll your own!
3a. Take the mount/photos to someone like
Himmelman Elastomers, they may be able to re-build them. In the case of Himmelman they've done some rubber vulcanizing/fabrication for me and they like something novel to play with. There must be someone similar in your neck of the woods.
**3b Do up a 3D model & drawing and send it to someone like
Nuraseal. Again this is someone that made something custom for me and enjoyed doing something novel. They've actually done several things for me.
This is one of the parts. It's a poured polyurethane casting done in a simple open mold.
3c. Use the 3D model from 3b to 3D print yourself a mold (or machine it out of aluminum) and cast the parts yourself! It's not that hard, I've done it with an aluminum mold. Use Devcon Flexane 80. Seriously, for a wannabe machinist it's not out of reach.
Your mold will basically displace the air space existing in the rubber plus position the central through bushing that the bolt goes through. Sandblast all the rust & rubber residue out of the steel cylinder and off the OD of the through bushing, mount the volumes that give you air space and the bushing and pour in the urethane. Pretty easy! Make sure your mold inserts don't have any undercuts that would keep them from being pulled from the cast part (Flexane mold release works well). If you did a 3D print, make sure to smooth the surface to eliminate undercuts.
Go to the truck boneyard and pick up one old mount so you can make the tool with it then cast and replace one at a time & Bob's your uncle. Even if it doesn't last another 30 years you can always make up more on a moments notice.....
That'll keep you busy for a while, LOL!
D
