[budscub]

Yeah the quietline tractors are great tractors. It does take a little different approach than conventional designs that are hard mounted. The 1650 I have belonged to my dad, My brother had inherited it, then sold it. I was able to track it down an purchase it 2 owners later. The ole girl was a little behind in maintenance When I got her. She was missing a couple of engine mounting bolts, the rails were loose, and the Iso mounts were shot. I pulled the engine, performed the cradle mod and installed the after market shock mount bushings.
I was satisfied with the results and thought that it was pretty good.
Then along came my 1450, I ran across it on c list and noticed it was a dual hydraulic control, so I bought it. I pulled the engine and did the cradle mod, and rotated the good upper iso to the bottom. Wow, I was amazed by how smooth and quiet this tractor was. So, now knowing how smooth the Quietline could be I purchased the oem replacement ISO mounts and installed them per the directions. I was a little disappointed when I fire her up, ugh, it was worse than before, but with $85.00 bucks sitting under the engine. Back to OCC for more research. I found the whole discussion on mounting torque and backing the bolts off, so nothing from nothing leaves nothing, I then loosened all the ISO mount bolts out to where they just began to compress the ISo mounts. That was the ticket.
Sorry for the long post, but there is hope for a shaking quite line.