chronic 95 camaro z28 transmission mount failure

Does it use the standard generic GM transmission mount? If so then Energy Suspension makes a polyurethane version. A little stiffer than stock so it will transmit more vibration but it will also last longer and help you launch harder, if you care about such things. I wouldn't recommend a solid mount for a street driven car, although those are available as well (I think from Moroso.)

nate

Did you check the motor mounts too? Or it could just be crappy quality aftermarket parts.

thanks JimV ... yea ... checked the motor mounts and they are fine. i've got the old tranny mount out now and going to Oreilly to change it out. (the rubber section split in half).

my check at RockAuto and a couple of other part stores only show this part#/manufacturer. tomorrow, i might call around to a performance parts house or two and see if i can find some other option, in case it happens again.

but i suspect you're right - a low-grade part.

regards, michael

Nate Nagel wrote: [snipped]

hi Nate ... i suspect this is the standard GM tranny mount, although purchased through Oreilly (parts chain/US).

if this thing goes out again, i'll look for the Energy Suspension part - thanks for the info!!!

here's a photo of the borked part:

That is a REALLY crappy design... Only about 1/8" of rubber holding it together.

hi Noozer ... the last mount that went out is the same design and went the same as this one ... the rubber sheared apart.

it's not that the rubber is ripping from the metal plate or that the stud is breaking loose .... the rubber itself sheared in half ...

cheap rubber? most likely. bad design? again, most likely, it might be interesting to discover if they make the OEM part for GM (i hope not) ... i'll call tomorrow.

I just checked the Energy Suspension web site and they list part no.

nate

hi Nate ...

yea, i just looked at the site and they don't list a tranny mount for my 95. i also checked for other F-body types (Firebird) and they [obviously] don't list a mount for those years.

the 3.1108 mount looks pretty close: it has the two holes to bolt the mount to the tranny, but it doesn't have the stud which protrudes through the crossmember.

interestingly, the results from a google search led me to Pit Stop Auto Parts, who magically has the Energy Susp item in zinc or chrome, red or black:

Maybe that's the difference, instead of a stud there is a threaded hole? take a look at the Energy web site, they have dimensions listed for this part, you could compare to your old busted one. The immediate thing that *I* thought of was that maybe the newer version used metric hardware and the "old" one obviously uses SAE fasteners.

nate

N8N wrote: [snipped]

gotcha, instead of a stud protruding down through the crossmember, a bolt goes up through it, screwing into the mount. that would allow the replacement of the mount without having to drop the crossmember.

of course, i'm not planning on having to replace it over and over :)

i've found some other competing mounts which have the same construction as the Energy, so this looks like the path to take if the new one fails.

thanks for the feedback!

I replaced mine once at about 110,000- still Ok at 119,000, not sure what the future holds. Could you have bad motor mounts contributing to the problem?

I will say that in my old Laser, I was regularly tearing up motor mounts, until I gave up using any of the aftermarket ones and started using the dealer parts. I tried several different aftermarket brands, too.

--scott