cals400ex

iTrader: (27)

i will be going back to a rubber one too. i was thinking that the torque for the tranny mount was only like 18 ft-lbs or something.

Strahley

iTrader: (4)

I like my Prothane combo (motor and trans mounts). I didn't buy this car for quiet cruises down the interstate, so I don't mind the vibrations

super_fro_daddy

iTrader: (29)

I said the same thing when I put mine on and the vibration didn't bother me but I had a vibration that wasn't (and still isn't) there with the stocker and I exploded the tailshaft housing. Granted it was over 100 mph but these things will do that in the 1/4 stock.

Formula413

iTrader: (1)

I think hearing that was the deal breaker for me with poly mounts, what could you possibly gain from them that is worth a broken transmission?

BOA279

iTrader: (1)

I completely agree. Stock mount $20, Poly mount $35, watching the guy next to you vibrate his milk into butter AND sitting on a bell housing or tail shaft housing time bomb. Priceless

Nothing is worth being more uncomfortable and risking the loss of a transmission. Especially when its not even a power adder. No thanks

blownbird355

IF you have vibrations you have something else going on all the rubber mount is doing is masking it a little better. Unless you have an alignment issue like height or sagging.

Websy21

iTrader: (34)

I want to run solid motor mounts b/c of my turbo downpipe, what would you reccommend with these? I thought the solid motor mounts with the polly trans was a great combo but this thread is believing me otherwise. Should I use a stock rubber one with solid motor mounts or ES one for the trans

caldercay

Whew! I just ordered the Prothane combo (engine and tranny mounts)
from Summit (along with other items). Someone suggested installing
motor mounts during the install of my headers, which is a good idea
considering I have 150k+ miles. Now I have serious doubts about
installing the Prothane polys. I guess it's back to Summit and get
some rubber to exchange the polys. Seeing as I have a new FLT
tranny waiting to go in, I'd hate to break it on account of the polys.

cals400ex

iTrader: (27)

i have the prothane motor mounts and i am really glad i put those in. my prothane tranny mount isn't that bad. however, there is more vibration than with a rubber mount. i am going back to a rubber mount just so it is more enjoyable when cruising.

MikeMoss

I have the prothane and when it is in OD I cant even tell it is there. It vibrates pretty bad on the highway if I put it in D but in OD it feels the same as stock.

Coy

iTrader: (4)

Yep, that's what I had on my last car and it worked great.

I am getting ready to install the same setup on my new car too.

(Spohn Solid motor mounts, stock GM replacement TM)

Websy21

iTrader: (34)

Well, I got the Sphon Solids and a ES one on the way. My understanding is that they are in b/w a stock and a polly so we'll see how it does. If its that bad I guess I'll need to grag an oem trans mount but it shouldn't be that bad

Rushin

iTrader: (18)

I can't believe no one else saw this... He's absolutely right. I've ran mine up to 150+ with no vibrations. I've had this Energy Suspension mount for the past three forevers and I have absolutely no problems with it...

intense3123

Is the trans mount the same part # for both A4 and M6?

cals400ex

iTrader: (27)

i am pretty sure it is the same part. when i just ordered a new mount for my auto i found the part number on this site and then when i went to gmpartsdirect the number that i was given showed up to be for a manual. i have been told before on here that they are the same part so i am almost 100% sure that it is the same thing.

foreverzero

iTrader: (5)

yeah probably the same reason they made the sweet 10-bolt

S_carve

iTrader: (1)

i just picked up a energy suspension trans mount from advance auto for $17.88, after reading this and a couple other posts i'm not sure i want to

although i do like doing things correctly and not an amateur tech, these last couple responses make it seem like the majority is doing something wrong

obviously i do not want to break my tailhousing, but i do feel the shifter moves alot when on hard throttle which makes me beleive that something is loose down there, whether its a TA mount or a trans mount something is not right

maybe comparing the amount of people that have aftermarket tunnel/SF connector mounted Torque arms vs. the stock Torque arms with vibration problems would be a help, because the aftermarkets are adjustable pinion angle maybe that makes the diff

like they said its all in the setup

Formula413

iTrader: (1)

What he means is, GM used a rubber mount rather than poly so that it could absorb drivetrain flex, rather trying to force metal parts (like the tailshaft housing) to flex.

Omec

iTrader: (2)

im sorry but soda came out my nose after reading this lol.
Anyways, Hey Formula413. how did the trans feel after the mount change? i gotta change mine out i think (havnt gotten under there yet).

Formula413

iTrader: (1)

The only change was there was no giant BANG!!! every time I got on it. I used a stock replacement so it didn't feel any different. No complaints. Lifetime warranty, so I never have to buy another one.