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Run,
I definitely referred him to this site and he also knew of "tundrasolutions" (??), as a matter of fact I gave him and the Service Manager at the local dealership hard copies out of this entire thread. I admit that I was motivated by the need to say "look... other people are out there complaining about the same thing... AND I AM NOT SOME WHACK-JOB complaining that my truck doesn't ride like an Caddy!!"
That's basically what the tech at Super springs said... he called it a beneficial side-effect and said that they couldn't give a "hard-number" percentage of vibration reduction to expect .
I don't know if either product (or a combo) will stop the oscillation, but I'm hoping something does.
I just reread the email I got from the Sulastic Rep and he called these things "rubber isolator type rear leaf spring shackle replacements." So I assume they are working the opposite side of the fence by dampening the vibration "preload" instead of preloading the springs?
You being the "car guy" would know better (and that's why I am here picking our brain!)
I do remember the Toyota Rep saying he liked the "idea" of them because once the shackle bottoms out, the stock Toyota leaf springs would take over as if the shackle wasn't there... and in effect, it didn't change anything but the preload ride.
I'd like to know why your buddy took them off, because at this point I don't have any feedback from an user... only the website and the Sales Rep (and we all know how UNBIASED their opinions are)
And again, thanks for starting this thread... I'd be chasing my tail for a few more weeks without it!!!
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