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  #1  
Old 08-06-2005, 11:07 AM
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Fifteen minute, $15.00 rear suspension mod.

I wanted to reduce the amount of play in the rear crossmember, without the noise or squeeking of hard polyurethane bushings.
In Advance Auto Parts "HELP" section, I came across these steering coupling discs, part # 31000.

They are just over 3" in diameter, and a little over 1/4" thick when compressed. Multiple layers of rubber and fabric and very durable.
They are perfect to use as shims in between the factory bushings, and the 3" in diameter rubber backed washer Subaru calls the "stopper diff mtg.

Jack up the car safely, and remove the two 17mm nuts that hold the stoppers in place.

Remove the washers.

Install the rubber rings, and the stoppers, and the nuts.
Tighten.
Lower the car and you are done.

Tom.
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  #2  
Old 08-06-2005, 11:29 AM
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Way to steal my idea!!! Actually I am using something else and it will be firmer and cheaper... Anyone want to play some hockey???

Tom
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  #3  
Old 08-06-2005, 11:54 AM
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Chiketkd Chiketkd is offline
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Thumbs up

Nice. I'm going to get this done! Very straight-forward and elegant Tom!

-Chike
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  #4  
Old 08-06-2005, 12:17 PM
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Quote:
Originally Posted by tomssvx
Way to steal my idea!!! Actually I am using something else and it will be firmer and cheaper... Anyone want to play some hockey???

Tom
Sorry, Lumpy.








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www.svxfiles.com
The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
the first with 4, 4.44s in his driveway


Fiberglass Hood thread
My locker
4.44 Swap link
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  #5  
Old 08-06-2005, 12:22 PM
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Hey!! I didn't get personal about it.....




























































But Maybe I just have to
embarassing picture insert here:



Tom

Last edited by TomsSVX; 08-06-2005 at 12:32 PM.
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  #6  
Old 08-06-2005, 12:26 PM
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So sorry, Tom.











Hows your forehead?
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www.svxfiles.com
The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
the first with 4, 4.44s in his driveway


Fiberglass Hood thread
My locker
4.44 Swap link
Reply With Quote
  #7  
Old 08-06-2005, 12:26 PM
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Tom,

Awesome mod! Wonder who's car that is...

-Bill (Sunday can't come soon enough....)
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  #8  
Old 08-06-2005, 12:28 PM
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There's a storm coming.
 
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It's MINE! MINE MINE MINE I tell you!
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www.svxfiles.com
The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
the first with 4, 4.44s in his driveway


Fiberglass Hood thread
My locker
4.44 Swap link
Reply With Quote
  #9  
Old 08-06-2005, 12:30 PM
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It's ok it is all in good fun.. Anyway what I meant by my hockey comment is that I will be using a hockey puck for my bushings. I will cut them to my spec and add them to each side of the subframe bushings. I have explained it in my Projects at Hand thread

Tom
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  #10  
Old 08-06-2005, 12:34 PM
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Cool. I have not seen that thread yet. I hope it works out.







BTW, Bill posession is 9/10ths of the law.



j/k
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www.svxfiles.com
The first SuperCharged SVX,
the first 4.44 gears,
the first equal length headers,
the first phenolic spacers,
the first Class Glass fiberglass hood,
the first with 4, 4.44s in his driveway


Fiberglass Hood thread
My locker
4.44 Swap link
Reply With Quote
  #11  
Old 08-06-2005, 12:49 PM
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Quote:
Originally Posted by svxfiles
Cool. I have not seen that thread yet. I hope it works out.







BTW, Bill posession is 9/10ths of the law.



j/k

-Bill
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Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023

Center Network Member #989

'92 Fully caged, 5 speed, waiting for its fully built EG33
'92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension
'92(?) Laguna, 6 spd and other stuff (still at OT's place)
My Locker
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  #12  
Old 08-06-2005, 06:41 PM
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Did it have any effect on handling or on driveline bounciness?
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  #13  
Old 08-06-2005, 06:51 PM
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Mod complete!

Took me just 15 minutes - with most time spent putting the back end of my car up on jack stands. I don't have an air wrench or breaker bar, but I was able to get both nuts off using a thick 1/2" socket wrench, a 17mm socket and a bunch of elbow grease!

The parts ran me just under $15 from Advance, and the steering coupling discs definitely have a solid, firm feel to them:



Sorry for the fuzziness of this pic, but a thunderstorm was about to start and I still had to lower my car from the jackstands:



I'll take my car out for a spin tomorrow and report back. This mod should definitely tighten things up in our awd driveline and keep the rear diff from moving up and down so much with throttle input.

Brilliant mod Tom...simply brilliant!

-Chike
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  #14  
Old 08-06-2005, 06:54 PM
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Quote:
Originally Posted by mbtoloczko
Did it have any effect on handling or on driveline bounciness?
I'll find out soon enough. I'll say this, before installing the shims, approx 3 threads stuck out beyond the end of each nut. Right now I have the same 3 threads sticking out - which means the shims have effectively tightened up the rear subframe a 1/4" more!

-Chike
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2006 Steel Gray WRX TR (sold)
1996 Brilliant Red SVX L (sold)
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  #15  
Old 08-06-2005, 07:24 PM
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Quote:
Originally Posted by Chiketkd
I'll find out soon enough. I'll say this, before installing the shims, approx 3 threads stuck out beyond the end of each nut. Right now I have the same 3 threads sticking out - which means the shims have effectively tightened up the rear subframe a 1/4" more!

-Chike
One thing I'm a little worried about is that you are raising up the rear diff slightly, this may have an effect on the driveshaft angles enough to cause some vibration at higher speeds. I was thinking it would be better to shim the top and bottom rather than just the bottom.
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:: 2006 Silver Mitsubishi Evolution 9, E85, 34 psi peak, 425wtq/505whp DJ ::
1995 Laguna Blue SVX L AWD 5MT (sold)

Visit my locker

SVX Mods: ND iridium spark plugs, Impreza RS fpr, afr tuned to 13.2:1 using a custom MAF bypass, custom exhaust, WRX 5MT w/ STi RA 1st-4th gear & stock WRX 5th gear, Exedy 13 lb flywheel & Sport Clutch, STi Group N tranny & engine mounts, urethane spacers in rear subframe, rear diff mounts, and pitch stopper, SVX Sport Strut Springs (185f/150r), custom 19 mm rear swaybar, urethane swaybar mounts, Rota Torque 17x8", 225/45-17 Proxes 4 tires, Axxis Deluxe Plus organic brake pads.
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