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Old 09-21-2007, 02:31 AM   #1
GarnetWRX
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Default DIY: Perrin 22mm Rear Sway Bar, Endlinks, & Drop Down Brackets

Hey yall! The time has come to stiffen up the suspension a little. I decided to replace the stock rear sway bar and all connecting pieces at the same time. Overall this installation was very straightforward and took less time then I had expected! My internal time clock was thinking an hour and a couple beers. Instead I was done and on the road in about 30 minutes!

Needed Tools and equipment
1) Floor jack
2) Jack stands
3) 12mm socket and wrench
4) 10mm nut driver or similar
5) 14mm socket and wrench
6) 6 pack of beer and a friend for conversation

Removal of the Stock Equipment
Step 1) Secure the car with blocks to prevent it from rolling forward. Jack the car up using a floor jack (make sure you are on a level surface). Place the jack stands on either side of the car. I placed them where the trailing arm met the frame. Once the jack stands are in place slowly lower the car.


Step 2) Disconnecting the stock rear bar and endlinks from the control arm. This will require the use of a 14mm socket and wrench. I started on the passenger side first and worked my way to the driver’s side.


I made sure to loosen and move the plastic shield that’s over the filler tube for the gas tank on the passenger’s side. There is a single 10mm nut over a stud. Just remove the nut, and the cover can be bent easily out of the way. (Its plastic!)



Step 3) Removing the stock bar and the stock mounts.
Since I purchased the Perrin Drop Down Brackets at the same time as the sway bar I decided to remove everything at the same time (all in one motion). Using a 14mm socket loosen and remove the bolts connecting the rear sway bar bracket to the car. Once all of the bolts are loosened and removed I pulled the stock bar and hard ware out from under the car. I was able to wiggle the bar from the driver’s side to passenger’s side and out with little effort.



Finally with all of the stock hardware removed from the car I was able to start installing the PERRIN gear. This was just as simple as the removal process.

Installing the PERRIN Parts
Step 4) Replacing the factory sway bar mounts with the PERRIN Drop Down Brackets
Using a 12mm socket and wrench I re-install the drop down brackets with the supplied hardware and one of the original bolts. (The OEM bolt is easier to use on the bolt farthest from the vapor canister on the passenger side. The longer one must be used on the rear most bolt to insure enough length is present to mount the vapor canister mounting tab and stout mount). After the brackets were securely in placed I then focused on the bushings.

I greased the PERRIN provided 22mm bushings and placed them onto the bar. Once both bushings were on the bar it was time to install the bar. Using the OEM hardware I started on the passenger side I placed on bolt (medium tight) just to hold the bar in place while I tightened the remaining three into place. Make sure to tighten all four nuts to 35 ft lbs. With the rear bar mounted to the drop down brackets it was time to connect the endlinks. Endlinks were a must for this install when you look at the stock ones and the PERRIN endlinks there is a noticeable difference. The solid PERRIN end links complete the suspension set up for my car.


Step 5) With the rear bar in place I tightened the four bolts connecting the endlinks to the rear bar and strut. (Make sure to tighten to 35 ft lbs) PERRIN provides some poly cushions to go on the lower mounting points. I used the additional grease to lube these up making it easier to get them in the lower control arm.



Before I lowered the car I checked one last time to make sure that everything was tight and then lowered the car. After taking it for a spin I instantly noticed a difference in the performance of the car. No noises creaks rattles etc. Totally seamless transition from stock to the PERRIN bar. I look forward to going to the medium setting on the bar once I am comfortable with the current setting.

For those looking for a little more information on the above parts here is a link with some more info.

Rear Sway Bar & Drop Down Brakets
http://www.perrinperformance.com/pro...ory=8&model=18
End Links
http://www.perrinperformance.com/pro...ory=8&model=18
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Last edited by GarnetWRX; 10-01-2007 at 12:37 PM.
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Old 09-24-2007, 10:40 AM   #2
PERRIN
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Nice write up! Thanks for the support!

Adam
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Old 09-24-2007, 12:12 PM   #3
EagleRockWrex
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Why is it neccesary to use the drop mounts?

I'm going to be doing this to my car this coming weekend, let me know how different it handles and feels.

Great write up!!
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Old 09-24-2007, 12:41 PM   #4
WRXLTD
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Quote:
Originally Posted by EagleRockWrex View Post

Why is it neccesary to use the drop mounts?
They're not necessary, but have you taken a good look at those wimpy stock stamped steel mounts?



Great write up GarnetWRX! I see you chose the softest setting on your rear sway bar to go with your stock tires...any thoughts about going to a stiffer setting? I just installed this same rear sway bar kit on my 07 WRX but went with the Kartboy endlinks for less noise & vibration.

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Old 09-24-2007, 12:46 PM   #5
PERRIN
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Quote:
Originally Posted by EagleRockWrex View Post
Why is it neccesary to use the drop mounts?

Great write up!!
The factory mounts are a bit flimsy. As a result they twist and bend before transferring the cornering forces. In many cases they will simply snap. In others they just become distorted and bent. The PERRIN mounts are available separately from the kit for use on other bars.

Hope that helps!

Adam
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Old 09-24-2007, 01:08 PM   #6
EagleRockWrex
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ahhh, so now I have to spend MORE money??

How much are those guys going to cost?
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Old 09-24-2007, 01:20 PM   #7
PERRIN
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MSRP is $99.99 but they are less when combined with the bar. Did you already buy a PERRIN bar? We might be able to get you a discount either way. Call our sales dept! Thanks for asking!

Adam
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Old 09-24-2007, 02:11 PM   #8
GarnetWRX
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Quote:
Originally Posted by WRXLTD View Post
Great write up GarnetWRX! I see you chose the softest setting on your rear sway bar to go with your stock tires...any thoughts about going to a stiffer setting? I just installed this same rear sway bar kit on my 07 WRX but went with the Kartboy endlinks for less noise & vibration.


Hey thanks for looking

This setup is awesome, I decided to go with the rear bar kit that came with the PERRIN Drop Down Mounts because I wanted to replace all of the stock mounts and bar. As far as noise and vibration I have not heard or felt anything, the car rides just like the day I got it. I have now had this setup on the car for a little over a week and there has been nothing to complain about at all!!

I wanted to start off on the soft setting and drive around for a couple weeks and then go to the medium. Once I get the feel for the soft and the medium I can go from there until I find the best setting for my daily driving and needs. I must replace the stock tires they are by far the weakest link now. With winter coming up I will most likely wait todo this till the spring… I think.

Here are a couple pics of the stock end links and the PERRIN endlinks as well as the rear bar and Drop Down Mounts.

Enjoy…

Here are the two bars, not the best pic I know but you can still see the difference


Side by side fo the endlinks



and another of the drop down mount on the car
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Old 09-29-2007, 12:21 PM   #9
GarnetWRX
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Hey all I just got back from a week long business trip and after driving a truck it was nice to get back into the WRX. If time permits I’ll be moving the setting from soft to medium on the PERRIN swaybar. I’ll let everyone know how it goes

K
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Old 09-29-2007, 02:28 PM   #10
EagleRockWrex
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Your write up helped greatly in my recent rear bar install!

I went Cusco 22-23-24 bar with gt spec end links, didnt do the stout mount, those subaru mounts seem fine, since I'm not auto xing, probably wont have a problem.

Makes a big difference though, ha? I put in a rear strut bar as well, all is right with teh subie now
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Old 10-01-2007, 12:15 PM   #11
GarnetWRX
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Quote:
Originally Posted by EagleRockWrex View Post
Your write up helped greatly in my recent rear bar install!

I went Cusco 22-23-24 bar with gt spec end links, didnt do the stout mount, those subaru mounts seem fine, since I'm not auto xing, probably wont have a problem.

Makes a big difference though, ha? I put in a rear strut bar as well, all is right with teh subie now


Glad I was able to help
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Old 10-01-2007, 01:24 PM   #12
Butt Dyno
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Quote:
Originally Posted by EagleRockWrex View Post
ahhh, so now I have to spend MORE money??

How much are those guys going to cost?
I have not researched this point specifically, but a lot of people with 02-03's upgrade to the 04+ swaybar mounts for the same reason. That may be a cheaper option depending on what size you go with, and that sort of thing.

I need to add this to the swaybar FAQ since it has pictures/info on how to install the passenger side mount. Thanks for the writeup

john
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Old 10-01-2007, 02:21 PM   #13
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Quote:
Originally Posted by ButtDyno View Post
I have not researched this point specifically, but a lot of people with 02-03's upgrade to the 04+ swaybar mounts for the same reason. That may be a cheaper option depending on what size you go with, and that sort of thing.

I need to add this to the swaybar FAQ since it has pictures/info on how to install the passenger side mount. Thanks for the writeup

john
John did you get a chance to check out my pictures/problem?
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Old 10-01-2007, 02:25 PM   #14
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96acccord: If we at PERRIN can help. Let us know! Happy to do so (even if it is a competitors part.)

Thank you!

adam@perrinperformance.com
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Old 11-03-2007, 04:37 PM   #15
Mechie3
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I have the older style mounts that aren't anodized. When I mount these, I'm assuming the writing goes to the outside of the vehicle, but what direction do i put the angled tab? Towards the front or rear of the vehicle?

Thanks.
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Old 11-03-2007, 05:32 PM   #16
PERRIN
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The angle goes toward the front of the car. The logo is visible from looking in through the wheel well. If you have any issues, just ring me up!

Adam@perrinperformance.com
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Old 11-03-2007, 05:51 PM   #17
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Quote:
Originally Posted by Mechie3 View Post

I have the older style mounts that aren't anodized. When I mount these, I'm assuming the writing goes to the outside of the vehicle, but what direction do i put the angled tab? Towards the front or rear of the vehicle?

Thanks.
As long as the writing faces out, you can't mess it up.
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Old 11-13-2007, 06:43 PM   #18
GarnetWRX
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Its been awhile since my last post so I thought I would take a moment to check back in with an update on the PERRIN rear sway bar. And after a couple months and about 2,000 miles I have no complaints at all. If anyone is looking for a rear sway bar kit I would highly recommend the PERRIN gear.

Best
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Old 11-14-2007, 06:39 PM   #19
PERRIN
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Thanks guys! This has been REALLY helpful for many clients! Glad this is working!
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Old 11-14-2007, 11:10 PM   #20
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I assume you still have the stock springs and bar in the front, any issues with that setup?
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Old 11-15-2007, 01:54 PM   #21
GarnetWRX
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Quote:
Originally Posted by funky monk View Post
I assume you still have the stock springs and bar in the front, any issues with that setup?
Ya still have the stock springs and front bar. No issues at all, I should be lowering the car before this spring. I'll be sure to post my DIY.

Thanks

Ken
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Old 11-24-2007, 10:52 AM   #22
flimflamman
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This can be done on ramps instead of jack stands aye?

Thanks for posting your install.
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Old 11-24-2007, 12:29 PM   #23
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Quote:
Originally Posted by flimflamman View Post
This can be done on ramps instead of jack stands aye?

Thanks for posting your install.
It's actually much easier on ramps than jackstands. Trying to put endlinks on a rear swaybar with the wheels at full droop is really really hard (ask me how I know )

You want to keep the suspension loaded, as you can't really torque the endlinks down with the car in the air anyway.
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Old 11-26-2007, 12:13 PM   #24
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Ramps are easier for sure. BUT doing it at droop isn't a problem either. I have done it both ways at home on my back and I don't thing either one was much easier. Again just one mans opinion!

Thanks again folks!

Adam@perrinperformance.com
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Old 11-26-2007, 12:19 PM   #25
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According to Whiteline manual for their RSB, it says you should tighten everything when suspension is loaded. I didnt use jack stands and it was hard as $@#! to get in there and get leverage but was able to do it in about a hour. If I could've done it without the suspension being loaded and put it on jackstands.. lol that would've saved a lot of trouble.
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