Nissan 370Z Forum

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-   -   DIY: Sway bar installation (front) (http://www.the370z.com/diy-section-do-yourself/5032-diy-sway-bar-installation-front.html)

ChrisSlicks 05-30-2009 09:45 PM

DIY: Sway bar installation (front)
 
This DIY describes replacing the front sway bar (stabilizer bar).
For the rear sway bar see here.

Tools required:
Jack stands
10mm socket
14mm socket
17mm socket
Torque wrench


http://www.the370z.com/members/chris...5-img-7566.jpg
http://www.the370z.com/members/chris...4-img-7567.jpg



Jack front of car and support securely with jack stands. It is not necessary to remove the wheels but you do get better access.


Remove undertray bolts using a 10mm socket (with optional electric driver). Remove plastic clips by popping center out with small flat screwdriver or finger nails.
http://www.the370z.com/members/chris...0-img-7555.jpg



Locate the end of the sway bar and loosen the end links with a 17mm socket or wrench. Leave loosely attached for now.
http://www.the370z.com/members/chris...6-img-7559.jpg



Remove the sway bar clamps with a 14mm socket.
http://www.the370z.com/members/chris...7-img-7558.jpg



Let the sway bar swing down. Disconnect the end links and remove the bar.
http://www.the370z.com/members/chris...0-img-7571.jpg



Preparing new bar by greasing the bushings.
http://www.the370z.com/members/chris...3-img-7568.jpg



Slide rubber bushing over bar and then add the clamp.
http://www.the370z.com/members/chris...2-img-7569.jpg



Installation is a reversal of the removal procedure.
- Attach end-links loosely
- Swing bar up and mount clamps to body
- Tighten clamps to 38 ft/lbs
- Tighten end-links to 62 ft/lbs (hold link with 17mm open wrench)
http://www.the370z.com/members/chris...9-img-7572.jpg
- Reattach under tray with 10mm socket

nogoodname 05-30-2009 09:49 PM

nice DIY, have any pics to illustrate this better??

ChrisSlicks 05-30-2009 09:51 PM

Quote:

Originally Posted by nogoodname007 (Post 81396)
nice DIY, have any pics to illustrate this better??

You don't see pics? Oops. The pics are there for me, I'll see if I can fix.

Edit: should be fixed now.

nogoodname 05-30-2009 09:52 PM

fixed.........i see them now......nice job


how does the ride feel now?? more stable at taking corners??

have you tried a hard turn with it on??

Musashi 05-30-2009 09:56 PM

The stiffer sway bars make a HUGE difference. I strongly recommend to all to enjoy anything from nice back roads to track time.

azn370z 05-30-2009 09:57 PM

Any chance you got the weight of the new versus old? Are you planning to replace the one in the rear?

ChrisSlicks 05-30-2009 09:58 PM

It feels a lot flatter in the corners. There is a down side however, it is now harder to load a corner of the car which may result in some unexpected turn in understeer. I'll be putting it to the test tomorrow with an auto-cross session.

nogoodname 05-30-2009 09:58 PM

thanks for the pic, i wasn't sure where to put the jacks exactly

ChrisSlicks 05-30-2009 10:00 PM

Quote:

Originally Posted by azn370z (Post 81411)
Any chance you got the weight of the new versus old? Are you planning to replace the one in the rear?

I didn't measure them, but the new one is significantly heavier by probably 50%. I would guess that the old front was about 15 pounds, and the new front is around 23.

Rear install is complete, guide coming up.

miguez 05-31-2009 09:21 AM

Thank you Chris. Hotchkis?

ChrisSlicks 05-31-2009 04:05 PM

Quote:

Originally Posted by miguez (Post 81775)
Thank you Chris. Hotchkis?

Yes, these are the Hotchkis.

Got to test them out today at the auto-cross so I can give you guys some feedback.

The car feels a lot flatter in the corners but now has a little more turn-in understeer. Honestly I think the front bar is a little too large, something inbetween this and the stock is probably what we really want, at least for auto-cross style driving. At the track I think the bar setup might be okay as you usually don't have to aggressively transfer weight to the front corner. The car did feel more settled in higher speed slaloms. They really need to come out with a front bar designed for the Z rather than just assuming that the G37 will work good enough.

miguez 05-31-2009 06:10 PM

Alright, thanks for the feedback, hopefully they'll come out with a specific one soon! Anyone knows if the Stillen one is different from their G37 one? Their PDF instructions still say G35 on them.

g96818 05-31-2009 10:10 PM

Nice DIY. I suggest you guys wait on Hotchkis to develop better sways or buy another brand who doesn't have that stopper welded on the bar. That weld joint creates a high stress concentration and possibly small cracks which could fail due to creep, which was exactly what happened to my last pair of Hotchkis.

wstar 06-19-2009 09:11 PM

Nice DIY again, just did mine. Only discrepancy: I don't think both sides of the end-link are 17mm, at least they weren't on my car. The nut you remove is 17, but the rear part you hold with an open wrench is larger, probably 19mm. I only had up to 18mm in open wrenches (at least that I could find), which also didn't fit over it, so I just opted for an adjustable wrench.

MursePaolo 06-20-2009 01:31 AM

how much did you pay for the set? if you don't mind. they look great btw.


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