View Poll Results: Which tranny mount do you prefer?
Stock rubber
38
43.18%
Energy Suspension
24
27.27%
Prothane
26
29.55%
Voters: 88. You may not vote on this poll
Transmission Mounts
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.
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.
Nothing is worth being more uncomfortable and risking the loss of a transmission. Especially when its not even a power adder. No thanks
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 
TECH Regular
Joined: Aug 2007
Posts: 418
Likes: 0
From: Cypress, TX
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.
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.
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Verdad Gallardo 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.
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...
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.
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
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
Same thing happened to me. It vibrated a bit but nothing major (I thought). Well I raced a new Mustang on the highway one day and at around 120 BOOM!!! the whole housing came apart, dumped fluid all over the exhaust, smoke was comin in thru the vents, I thought I was on fire!! So when I got out to see what the hell happened I looked under the car, trans fluid was pissin out.
Well, $150 flatbed ride, $215 (I think, I managed to get a discount) later I put the stocker back in and no more vibration.
Well, $150 flatbed ride, $215 (I think, I managed to get a discount) later I put the stocker back in and no more vibration.
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).
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.
I used a stock replacement so it didn't feel any different. No complaints. Lifetime warranty, so I never have to buy another one.