Q45tech wrote:Motor mounts and all rubber isolators and bushings need replacing every 100k, just the way it is............many items don't last that long: upper links tension rods, tranny mounts, exhaust hangers.
Yes, heavy cars are hard on bushings. LS400s are the same, so are SCs, etc, etc. My friends with Jags, S-series Mercs and 7-series BMWs complain about it too.
Just be happy that our parts come in a cheap grey box and not an expensive blue box! I just grin when I tell them I pay $90 for a tranny mount and under $100 for engine mounts too.