HOW-TO: Fill Stock Mounts w/ Flexane 94 - SRT Forums

Grifter · 03-14-2005, 09:46 AM

Filling the stock mounts is a pretty straight forward job. The biggest problem I had was figuring out what to fill them with. I did some searching and found this stuff, this is the real deal. You can get it at Grainger, it's $35 for a pound. It will fill all 3 mounts and you'll have some left over.

Devcon Flexane 94a:

The first step is masking off the mounts. This is a critical part because you don't want the flexane pouring out everyhwere or else you'll be dishing out another 35 bones. I taped it off with duct tape and it worked fine. Note: I cut off the rubber stubs on one side of the tranny mount because it made it much easier to mask off the mount. Also, which ever side you mask off will have the print of the duct tape, so if you care about how the top mount looks make sure you mask the BACK of the mount. Other than that I didn't have any trouble masking them off, just make sure to tape it up good!

Next you have to mix the Flexane. There's instructions on the box and it's pretty easy to understand. Once mixed you'll have about 20 minutes before it's begins to harden. You don't have to hurry up but be aware that you won't have all day to play with it. Once mixed it'll have the consistency of motor oil.

Pour the urethane in to the mounts:

And that's that! The full cure time is 7 days or you can heat them at 100 degrees for 24 hours(All this info is on the box) Once fully cured these suckers are stiff! I only installed the tranny mount and I can already tell a big difference in stiffness and vibration.

cali · 03-14-2005, 01:42 PM

for reference, 60dur is what flex mounts have
80dur is what stiff mounts have
(standard from other vendors)

Back-n-Black · 03-14-2005, 01:48 PM

Vote to stickey!

2.4TURBOMAN · 03-14-2005, 02:29 PM

I have never heard of Grainger , is that a part store , where else might someone be able to locate this stuff ?

nolimits · 03-15-2005, 09:51 AM

Great Writeup Grifter!!!!

Youll have to give me a ride in your car so I can see how it is.

Grifter · 03-15-2005, 10:23 AM

It's a sticky!!! I'm honored!!

Turboman: Grainger is an industrial parts store. They have a website http://www.grainger.com/Grainger/wwg/start.shtml Part # 5E154 BUT they only deal business to business,so when I went in their store front to get the flexane I couldn't buy it. BUT if you kow anyone that works for a company they should be able to get it for you. I didn't try to get it online, so I'm not sure if you can order without having to give your companies #.

Brett: No problem, I just want a ride in your Stage 2 car first!

TruBoostSrt4 · 03-15-2005, 10:37 AM

GOOD INFO

2004SRT-4 · 03-15-2005, 10:41 AM

how bad is the vibration?

Dark-SRT4 · 03-15-2005, 10:50 AM

94a is incredibly stiff, keep an eye on them for forming cracks or peeling.

Best thing for anyone to do is get a torch and melt out some of the stock rubber and fill with 80dur. it gives the mount a great feel if you are on a tight budget.

Grifter · 03-15-2005, 01:14 PM

Yes, 94 is very stiff. The reason why I went with that is becasue I know some people who have SHO's and have been filling their mounts with this stuff for years. So it's been tested and I know it works.

And as far as budget goes, $35 isn't that much, so I guess it depends on how stiff you want the mount.

2004SRT4: Vibration is a lot more INTIALLY, after a day of driving I'm used to it.