Rear knuckle shock/true coilover bushing replacement - W62535 - MY350Z.COM Forums



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Old 02-18-2013, 04:32 AM   #1
JasonZ-YA
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Default Rear knuckle shock/true coilover bushing replacement - W62535

Ref.: Whiteline bushing part number W62535

Hi,

so it seems i made this "HOW TO" before, but made it in the DFW lounge thread and never made its OWN thread for EVERYONE to easily find......oops

The bushing I'm replacing is on the top of the rear knuckle. It is the oem shock to knuckle location - same as true coilover to knuckle location...

So here goes:


Quote:
Originally Posted by JasonZ-YA View Post

ALSO NOTE:

This took a bit of research as NO sites that sell these bushings, clearly explain or even give part numbers for the spring bucket to knucke mount bushing location. But in case you need its the same bushing as the commonly listed "knuckle to shock mount bushing" that everyone replaces when going to coilovers.

Mainly those with true coilovers as thats the only point of mounting for them to rear suspension arms.

see here:


That bushing is the same for both locations - whiteline p/n is W62535 - if you notice on most sites, its the same price for those two, because they are the same. To install this whiteline bushing you need to go to a local steel yard and get a 1.5" DOM STEEL round stock with a .083 wall.
that results in a 1.33 Inner diameter that fits over the W62535 rear shock mount bushing perfectly:

that steel DOM shown will now be the driver for installing that bushing.

Last edited by JasonZ-YA; 02-18-2013 at 04:45 AM.
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Old 02-18-2013, 04:35 AM   #2
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Install that bushing like this:

Quote:
Originally Posted by JasonZ-YA View Post
Rear knuckle bushing where shock/coilover attaches:

HF Ball joint tool: ~ $29.99 on sale Item 38335


26mm socket used to remove oem bushing:

Obviously this picture was taken after i took the bushing out to show that the socket fit well.

Mounted up:


I purchased HF long handle wrench set ITEM #47067 and used the 22mm wrench from the set. The beautiful thing about it was the angle the head had and the length for leverage in fighting the bushing out. Having the 22mm wrench made it EASY:



22mm long handle wrench from HF set used to turn da bish:


OEM BUSHING ON ITS WAY OUT ~ FALLING INTO RECEIVING STEEL CUP:


OUT:

However, notice how this side of the rear knuckle is machined FLAT!
Well, the opposite side is NOT flat and is angled at about a 5 degree angle.
~ Sorry, I didn't get a picture of this ~ but I then found a larger piece of steel and cut one side of it at a five degree angle with my chop saw to help line up the ball joint tool STRAIGHT!


Update - here is a picture showing the 5 degree issue im talking about:

Notice how this side is angled at 5 degrees, and how the black receiving cup isn't straight:


I replaced the black steel cup with another larger piece of steel, cut one side at a 5 degree angle and then when i rigged the entire ball joint tool back up everything lined up great and bushing pressed in easy on the first time!



Steel needed to install the whiteline bushing in:
To install this whiteline W62535 bushing you need to go to a local steel yard and get a Overal diameter 1.5" DOM STEEL round stock with a .083 wall.
That results in a 1.5-.083-.083 = 1.33" Inner diameter that fits over the W62535 rear shock mount bushing perfectly:


New Whiteline P/N W62535 bushing installed:


-J
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Old 02-18-2013, 04:36 AM   #3
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Quote:
Originally Posted by crsracing19 View Post
In the mounted pic is that a socket pushing out the bushing into the black cup thing?
Yes.....its a socket.from my 1/2" drive set...iirc its a 26mm socket, but just find any one that fits to push the oem bushing out..


UPDATE:
found pic:

-J
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Old 02-18-2013, 04:36 AM   #4
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I decided to make this its "HOW TO" own thread after i saw this post:
https://my350z.com/forum/10045586-post1.html

I thought i had made its own thread some time back, but i guess i only did it in the dfw lounge and the other thread mentioned.....

anyways, hopefully now more people find it that need it...

-J

Last edited by JasonZ-YA; 02-18-2013 at 04:38 AM.
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Old 02-18-2013, 04:37 AM   #5
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saved for later...im done....hope this helps peepz...

-J

Last edited by JasonZ-YA; 02-18-2013 at 04:42 AM.
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Old 07-29-2013, 04:51 AM   #6
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Jason,
I planned on doing this and used this to make sure what the job would be like. I took a peek under the car again and never noticed from the corner of your pics that the ball joint needs to come out because it is in the way. Being the stubborn man I am, I was determined to avoid that. I did the same basic method you did but used acme threaded rod, nuts, and washers, and the same size receiving cups and a 26mm socket to do all the work as well. I noted the 5degree slope you mentioned and actually it did not make much difference using a threaded rod because you can adjust the angle that it pulls at somewhat. Everything fit though and just made it clearance wise. Of course there would not be room if the car was not up in the air and all of the arms had drooped down.
What I DID run into trouble is with the stupid whiteline bushing. I did not run into any problems with Whiteline with all of the bushings I put in the front suspension last year but I was using a hydraulic press and didn't measure anything since I had no problems. However with the W62535 I did have problems getting it started and figured it was just the 5 degree slope killing me. After several attempts and also trying to match my press tool to the slope exactly to make sure the pulling rod was perfectly straight it still would not start straight. Well I measured and the arm is 0.421" the original OEM busing OD was 0.421-0.422"
THe whiteline bushing measured 0.430-0.435!!! It is WAY too big for fitment and not perfectly round. Since my car was in the air and one of the factory bushings was destroyed removing the shock (shock bolt is fused to bushing from corrosion - year round DD in the snow/salt with 200,000miles) I had no choice but to make it fit. I put a sanding flapper wheel in my drill and sanded it down. Couldn't fit it in my lathe - it was 1/16" too big for the jaw chuck and was too lazy to put the large 4 jaw and get everything centered properly. I ended up sanding it down to about 0.422-0.423 or so not wanting to go too small and it went in straight and fit tight. I ended up with it more round than Whiteline made it. I cannot believe how much it was oversized though.
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Old 07-29-2013, 05:49 AM   #7
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^ oh man, bummer...

good approach with the all thread rod for installation...

glad you got it figured out!!
-J
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Old 01-19-2016, 12:55 PM   #8
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If one had the knuckle completely off the car, would it be possible to just press all the whiteline bushings in with a vise? I asked a shop about pressing these bushings in, and they said that they would most likely just use vise to do it. . .
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Old 03-10-2016, 04:44 PM   #9
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Quote:
Originally Posted by pfregeolle View Post
If one had the knuckle completely off the car, would it be possible to just press all the whiteline bushings in with a vise? I asked a shop about pressing these bushings in, and they said that they would most likely just use vise to do it. . .
Yes, pop the whole knuckle off (takes 15 minutes tops), and just use a vise. I promise you won't have any problem with that whatsoever! I'm doing it this weekend if you want me to report back on it or make a how-to
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Old 03-10-2016, 09:14 PM   #10
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Quote:
Originally Posted by pfregeolle View Post
If one had the knuckle completely off the car, would it be possible to just press all the whiteline bushings in with a vise? I asked a shop about pressing these bushings in, and they said that they would most likely just use vise to do it. . .

Quote:
Originally Posted by KJFire4Life View Post
Yes, pop the whole knuckle off (takes 15 minutes tops), and just use a vise. I promise you won't have any problem with that whatsoever! I'm doing it this weekend if you want me to report back on it or make a how-to
Yes....go for it...see when I did mine I only did the top bushing and did it on the car.

Ya take pics plz. Would be good to see.

Thx
J
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Old 03-11-2016, 01:13 AM   #11
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Will do! I will either stand corrected and say it's a PITA or it'll go smoothly and easily (never happens lol) I'll report back with my findings
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62535, bushing, bushings, coil, knuckle, mount, mounting, my350z, press, rear, replacement, shock, shocks, upper, whiteline

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