So I heard a lot of talk about Prothane's replacement for the transmission mount inserts in our manual transmission applications sagging over time... I believe instead of buying fresh inserts or replacing them with redesigned solid cast urethane I found a cheaper alternative...



This is 1/2" thin wall aluminum tubing... Commonly found in scrap yards on GM oil line assemblies or bought at the home improvement stores where they sell round tube stock. I flared both ends with a ball joint press and a 45 degree mandrel to secure them permanently in the insert... Done at three holes for the necessary support without ineffective weight. We shall see how they work when the trans goes in in december.



Buildin' n' Boostin for 08' - Alex Richards

cool, wonder if you did it to all 6 fi it would make the mount stiffer.


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer

Good idea!......I was going to fill mine with urethane sealant but opted not to bother.

hmmm whenever i get around to getting prothane inserts i may do this right off the bat

don't the ttr engine mounts use these bushings? maybe it'll solve the sagging there too...

TTR solid poly mounts sag too?


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer

Wow thats a good idea! I might just have to do that to mine.


C:\Users\Phillip\Pictures

honda guys have been filling theirs with acrylic for years...

Ttrs mounts are solid ploy, they don't have the holes like the prothane mounts.


"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"

I was actually contacted about doing these in delrin like my trailing arm bushings.

Just waiting for the original bushing to come in so I can get to modeling and prototyping.



I <3 JGM
I think bigfoot is blurry,
that's the problem. It's not the photographer's fault. Bigfoot is blurry. And that's extra
scary to me. There's a large, out-of-focus monster, roaming the countryside.
"Run! He's fuzzy!" "Get outta here!"

In Loving Memory of Phil Martin December 14 2005

Those might be a little extreme, but I guess they'd be perfect for anyone running solid upper and lower mounts.


1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by: Kronos Performance

WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer

Yea it wouldn't be something for everyone but a very viable solution to the sag issue.


I <3 JGM
I think bigfoot is blurry,
that's the problem. It's not the photographer's fault. Bigfoot is blurry. And that's extra
scary to me. There's a large, out-of-focus monster, roaming the countryside.
"Run! He's fuzzy!" "Get outta here!"

In Loving Memory of Phil Martin December 14 2005

Thats the @!#$ I'm talkin bout, I'll have to do the same thing too seeing how I just picked up a set of these mounts, I was thinking on doin the same thing but ya beat me to it but thats good at least I kno what to do now and what to use, Thanks man.



Skr8 Goodz in tha hood