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suspension conversion decided, pitfalls and guidance?

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Old Mar 28, 2014 | 06:14 AM
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Default suspension conversion decided, pitfalls and guidance?

My Lexus now has $173k miles and has never had suspension work. I've decided to go with the following:

FRONT:

Will be one of these 4Runner OEMs, not sure which one because they have a different stock number but no idea which one will fit:

http://www.villagetoyotaparts.com/pr...852039875.html

http://www.villagetoyotaparts.com/pr...852039885.html

REAR:

http://www.strutmasters.com/Lexus-GX...arts-s/624.htm

I understand that I'll lose height control. My questions are:
1) Will my ride be smooth or stiff?
2) Is there anything about the installation that I need to relay to my mechanic?
3) Are there any other parts that I'll need?

TIA!
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Old Mar 28, 2014 | 10:33 AM
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I used Oem Toyota part
48510-69555. Front struts
48302-35040 rear shocks
My ride is a little stiff now but was told it will soften up
Will need spring compressor to do front struts.
No other part needed.
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Old Mar 28, 2014 | 11:50 AM
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Originally Posted by 2OnyxLexus
I used Oem Toyota part
48510-69555. Front struts
48302-35040 rear shocks
My ride is a little stiff now but was told it will soften up
Will need spring compressor to do front struts.
No other part needed.
How is 69555 different from the ones I linked? Here is yours:

http://www.villagetoyotaparts.com/pr...851069555.html

The second set of numbers for the rear is a spring sub-assembly (hollow). Isn't this one of may parts that I would need if I went with the 4Runner OEM rear conversion?

http://www.villagetoyotaparts.com/pr...830235040.html

This is all very confusing.
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Old Mar 28, 2014 | 12:38 PM
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Originally Posted by spoogie
This is all very confusing.
If you look at your front shock links again, it says W/REAS at the end. You don't want that since we don't have those XREAS shocks on our GX.

And the second link that 2OnyxLexus posted is for the upper rear spring seats that act as an internal bump stop, not rear shocks.

Here's what you'll need:

FRONT SHOCKS (STRUTS), you'll need 2
http://www.toyotapartsoverstock.com/...851080086.html

REAR SHOCKS, you'll need 2
http://www.toyotapartsoverstock.com/...853080372.html

REAR SPRING SEAT / ISOLATOR, you'll need 2 (See the attached picture)
http://www.toyotapartsoverstock.com/...830235040.html

And FYI you don't have to use a spring compressor to replace the front shocks:
http://www.toyota120.com/forum/showthread.php?t=3270
Attached Thumbnails suspension conversion decided, pitfalls and guidance?-4runner-top-spring-isolator-toyota-part-number-4830235040-500.jpg  
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Old Mar 28, 2014 | 12:44 PM
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By bad. Wrong part number.
48530-80372 is what I used.
Copied the wrong one.
Thanks for the correction RC.

I guess you could replace your front struts like that. I have access to a wall mounted spring compressor. So that is what I used.

Last edited by 2OnyxLexus; Mar 28, 2014 at 12:56 PM.
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Old Mar 28, 2014 | 12:52 PM
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I forgot you said you're using the strutmaster rear kit. I don't know if the stock isolators will fit or not w/ those springs, so I can't say for sure if you need them....but even if you were to use the stock 4Runner springs, guys that have done the airbag to rear spring conversion on their 4Runners have not always used the isolators so I don't think they're really a must have anyway but when I do the conversion I'm using them.
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Old Mar 28, 2014 | 07:47 PM
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Originally Posted by RCsGX
If you look at your front shock links again, it says W/REAS at the end. You don't want that since we don't have those XREAS shocks on our GX.

And the second link that 2OnyxLexus posted is for the upper rear spring seats that act as an internal bump stop, not rear shocks.

Here's what you'll need:

FRONT SHOCKS (STRUTS), you'll need 2
http://www.toyotapartsoverstock.com/...851080086.html

REAR SHOCKS, you'll need 2
http://www.toyotapartsoverstock.com/...853080372.html

REAR SPRING SEAT / ISOLATOR, you'll need 2 (See the attached picture)
http://www.toyotapartsoverstock.com/...830235040.html

And FYI you don't have to use a spring compressor to replace the front shocks:
http://www.toyota120.com/forum/showthread.php?t=3270
Well this clears it up a bit, thanks. But what about rear springs? Am I not seeing that somewhere?

If I elect to go with the Strutmasters for the rear, they come with shocks already. Advantages to going with Toyota OEM all the way around?

Last edited by spoogie; Mar 28, 2014 at 07:51 PM.
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Old Mar 28, 2014 | 08:25 PM
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Originally Posted by spoogie
Well this clears it up a bit, thanks. But what about rear springs? Am I not seeing that somewhere?

If I elect to go with the Strutmasters for the rear, they come with shocks already. Advantages to going with Toyota OEM all the way around?
The OEM spring is on the same page as the rear shocks in the link I posted above...it's under product assemblies. You just click on the diagram to get the part number

48231A (Right)
http://www.toyotapartsoverstock.com/...823135281.html

48231B (Left)
http://www.toyotapartsoverstock.com/...823135281.html

As for the advantages of going w/ OEM springs, I couldn't tell you since I'm not running them. I haven't seen anyone with a GX run them but there are 4Runner guys running them. Try and search around on some 4Runner sites and see what they say.
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Old Mar 31, 2014 | 07:51 AM
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I went ahead and ordered the strutmasters for the rear. As far as the front, I called Toyota Parts Overstock about this part you listed:

http://www.toyotapartsoverstock.com/...851080086.html

They informed me that this part is not available.
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Old Mar 31, 2014 | 07:58 AM
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Originally Posted by 2OnyxLexus
I used Oem Toyota part
48510-69555. Front struts
48302-35040 rear shocks
My ride is a little stiff now but was told it will soften up
Will need spring compressor to do front struts.
No other part needed.
Did a search and cannot find a front strut with the part number you listed:

http://www.toyotapartsoverstock.com/...rm=48510-69555

UPDATE:
Found it here. So odd that the other web site would have it? Both sites sell OEM Toyota parts.

http://www.villagetoyotaparts.com/pr...851069555.html
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Old Mar 31, 2014 | 11:16 AM
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@2OnyxLexus

Village Toyota Parts informed me that the front shock you listed also does not include the spring. Is this accurate? If so, what spring do I need?

http://www.villagetoyotaparts.com/pr...851069555.html
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Old Mar 31, 2014 | 12:38 PM
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Originally Posted by spoogie
@2OnyxLexus

Village Toyota Parts informed me that the front shock you listed also does not include the spring. Is this accurate? If so, what spring do I need?

http://www.villagetoyotaparts.com/pr...851069555.html
Click on the link you posted above....

Then click on the link to the left of the red arrow.


Once you're on the new link, use the + magnifier glass to zoom into the spring in the diagram to get the part number. Then look to the right of the screen and scroll down until you see the part number for the front L & R springs.

Last edited by RCsGX; Mar 31, 2014 at 02:04 PM.
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Old Apr 1, 2014 | 12:20 PM
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Okay that makes sense. Only problem is, there are 4 versions for both sides with the same part number.

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Old Apr 1, 2014 | 12:32 PM
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Well, the GRN210 is likely 2WD, and the GRN215 is likely 4WD, but other than that I can't tell you the difference, other than price.

Edit: 2WD might actually be UZN210/215, so I don't know.

Last edited by IanB2; Apr 1, 2014 at 12:38 PM.
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Old Apr 1, 2014 | 12:34 PM
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You want UZN (V8)...215 (4WD); GRN is the V6.

4Runner 2WD 4.0L 03-09
Chassis Code: GRN210
Engine Code: 1GR-FE

4Runner 2WD 4.7L 03-09
Chassis Code: UZN210
Engine Code: 2UZ-FE

4Runner 4WD 4.0L 03-09
Chassis Code: GRN215
Engine Code: 1GR-FE

4Runner 4WD 4.7L 03-09
Chassis Code: UZN215
Engine Code: 2UZ-FE
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