Well I made a puck mount today, cost me about 16 dollars. Overall, not too pleased with it. I seem to have quite a bit of vibration at 1800rpm, which I expected, but I drive mostly on the freeway, and my car sits between 1700 and 2200 while driving on the freeway. Everytime I accellerate (at freeway speeds) it gets bad and has an associated noise problem - kind of like a grumbling noise. So I am probably going to go back to a stock GM mount in the next couple of weeks. One thing I noticed is that I can't feel my shifts at all now, which is nice, but it seems like when I get on it, it dosn't downshift quick enough... it dosn't clunk, or shift hard when it does, just dosn't respond quick... could this be TPS problem or something?

Thanks,
ray

I just put the solid mount in yesterday myself. I also pickup vibrations and that grumble, but at different points. That could be as a result of some neoprene washers and other spacers that I used to try and limit the vibration. It probably just put it at a different spot. I haven't decided if I like it yet.

As for the shifting, I haven't noticed any real change there however, I just put a shift kit in the day before and was still getting used to that. I'd think your shifting is unrelated. Were you experiencing anything like that before swapping out the mount?

Yes - I had been driving around with the mount bad for a month, because I had just purchased the vehicle, made first payment and tax, and moved in 30 days... was kinda broke. Anyhow - it was doing it before. The shifting is smoothing now that the engine isn't rocking, but I think the vehicle may have gotten used to have like 5 inches of movement, and I need to disconnect the battery for now, and let is relearn with the new mount and such.... It felt like before, I would hit the gas, the engine would rock back, and then catch, and I think the computer is still compensating... I don't know if that makes sense or not...

-ray

I thought that mine might have been shifting funny too, but I just thought I was being overly attentive.

What is the process to the relearn procedure?

Just disconnecting the battery for a while, and then reconnecting it will do it. It loses all of the stored information, including shifting for your driving style. It will normally adjust over time, but it may be quicker this way.

I'm surprised there hasn't been a professional mount made for this. With the right materials I'm sure Intense or ZZP could make a replacement mount that would almost eliminate the vibration.

Has anyone tried spacing the pucks with the neoprene washers?

Archon, where did you get the neoprene washers?

I would guess that it wouldn't be profitable enough for them to R&D it, then find a manufacturer, etc. I picked up the washers at The Home Depot. They're wide, but pretty thin. I think the main problem of the vibration transfer is that there is one bolt running from the transmission bracket to the cross-member. You may be able to have something around that bolt to help absorb some of the vibration, but most will still be transfered. Separate bolts with material between, similar to the original design yet stiffer, is what is really needed IMO.

Is the stock mount liquid filled?

Yes, it is filled with hydraulic fluid.

so disconnect the battery for, " A while..." like 5 mins? 10

Not trying to be picky, just want to do it right.

FYI - I got a new mount from GM Parts Direct:

Part #: 25731375
Unit Price: $64.19
Quantity: 1
Ext.Price: $64.19
================================================== ================
SUB TOTAL: $64.19
SHIPPING: $14.12
TOTAL: $ 78.30