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front and rear motor mounts/roll stops

black_gst

Proven Member
2,471
26
Jun 16, 2008
IE, California
are you tired of your noisy solid aluminum roll stops? or want to stop wasting money one replacments because they keep ripping even with those crappy inserts that come with the Prothane and ES motor mount kits?

well i think i have a soultion for you
its still in the works but i hope to have a working prototype sometime this month

heres some teaser pics

heres what you get once you remove the stock rubber bushings

IMG_20110225_172745.jpg


that rear mount jout wouldent work as is so we decided to fit an aluminum sleeve so it will accept a polyurethane bushings a bit better

IMG_20110225_181421.jpg

IMG_20110225_181215.jpg


the plan is to make it a split bushings design very similar to the polyurethane trans and engine mounts that prothane makes.

ill update this thread as this progresses!
 
Last edited:

97gst_spyder

Proven Member
2,267
13
Sep 1, 2008
Lakeland, Florida
I took mine out and gutted the factory rubber and eyelet out. Then leathed down the 1g solid prothanes for mine. Worked well and only took 3 hours and $30 total.

But that sleeve on the rear looks awesome!
 

LiquidX

DSM Wiseman
8,304
108
Sep 19, 2008
Anywhere, Pennsylvania
one question.... what advantage is there going this route over something like a clomplete custom replacement like the ones avid racing makes????

+1

I would assume the price would have to be much better than the Avid for it to be worth while.

So yours will be a full mount already assembled or do we need to send out ours or what would actually happen? What's the reasoning for cutting the mount in the center?
 

ramsack

Proven Member
3,286
16
Dec 27, 2007
West Lawn, Pennsylvania
The mount isn't cut, that's how they come, hence the need for a sleeve to be added. I don't get why a stock sleeve can't be used, and just have the rubber stuff gutted out of it. That could lower cost.
 

black_gst

Proven Member
2,471
26
Jun 16, 2008
IE, California
one question.... what advantage is there going this route over something like a clomplete custom replacement like the ones avid racing makes????

well price is def the advantage. for both the front and rear motor mount bushings im aiming for is sub $120!

I took mine out and gutted the factory rubber and eyelet out. Then leathed down the 1g solid prothanes for mine. Worked well and only took 3 hours and $30 total.

But that sleeve on the rear looks awesome!

no bad, but most dont have access to a lathe and that still leaves no solution for the rear mount

+1

I would assume the price would have to be much better than the Avid for it to be worth while.

So yours will be a full mount already assembled or do we need to send out ours or what would actually happen? What's the reasoning for cutting the mount in the center?

mine will be the bushings with the center sleeves (just like prothane kit for the motor and trans mounts) and the one outer sleeve for the rear mount, if you want to install then your self you can but i am working on an exchange option where either you send me you mounts ahead of time and i send them back ready to install or i send you a set ready to install, with like an extra $60 core charge and then when i recieve your stock reusable mounts i refund you the core charge

The mount isn't cut, that's how they come, hence the need for a sleeve to be added. I don't get why a stock sleeve can't be used, and just have the rubber stuff gutted out of it. That could lower cost.
ramsack is correct that is how they are stock
to be honest the cost of that sleeve isnt that much when compared to the hassle of burning or cutting the rubber out and then trying to clean it up really good so you can slip a pretty new bushings into it

also does everyknow that the front roll stop has a 5/8 hole in it and to bolt you put through is only 10mm dia! that mean there almost a 1/4" of play in that mount. these will come with stainless steel center sleeves that will fit snugly to the bolt and mount leaving no room for any play
 

ramsack

Proven Member
3,286
16
Dec 27, 2007
West Lawn, Pennsylvania
also does everyknow that the front roll stop has a 5/8 hole in it and to bolt you put through is only 10mm dia! that mean there almost a 1/4" of play in that mount. these will come with stainless steel center sleeves that will fit snugly to the bolt and mount leaving no room for any play

That's good! My complaint with aftermarket mounts is that they leave the hole so big to conform with OEM specs. The huge hole is only necessary for a mount that sags and changes position over time (stock rubber strap-mounts) to align the engine properly. The huge hole in the solid mounts makes a nice clunk.
 

black_gst

Proven Member
2,471
26
Jun 16, 2008
IE, California
if anyone is interested in these you can pm me for more info. these will be ready for production very soon!
 

PieEyedPiper

DSM Wiseman
5,580
43
Nov 13, 2004
North Bay Area, California
Interesting tidbit there, about the large bolt hole and small bolt. I'm dying to go experiment with my front mount now.

If not solid, can anyone see why using a larger bolt would be bad?
 

black_gst

Proven Member
2,471
26
Jun 16, 2008
IE, California
Interesting tidbit there, about the large bolt hole and small bolt. I'm dying to go experiment with my front mount now.

If not solid, can anyone see why using a larger bolt would be bad?

You would just have to drill out the bracket to allow for a larger bolt

Sent from my Droid using Tapatalk
 

black_gst

Proven Member
2,471
26
Jun 16, 2008
IE, California
the proto types are being made right now, i hope to have them back in my hands by the end of this week/early next, ill be posting pics for everyone to see. ill be making a very limited 1st batch of these, if you would like more info please PM me
 

Ozzy96GSX

Probationary Member
1
0
Sep 30, 2020
San Jose, California
are you tired of your noisy solid aluminum roll stops? or want to stop wasting money one replacments because they keep ripping even with those crappy inserts that come with the Prothane and ES motor mount kits?

well i think i have a soultion for you
its still in the works but i hope to have a working prototype sometime this month

heres some teaser pics

heres what you get once you remove the stock rubber bushings

View attachment 438285

that rear mount jout wouldent work as is so we decided to fit an aluminum sleeve so it will accept a polyurethane bushings a bit better

View attachment 438286
View attachment 438287

the plan is to make it a split bushings design very similar to the polyurethane trans and engine mounts that prothane makes.

ill update this thread as this progresses!
Where can I purchase these, can’t seem to find any.
 
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