suspension conversion decided, pitfalls and guidance?
Pole Position
Joined: Feb 2013
Posts: 2,390
Likes: 555
From: WPG, MB
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
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
Thread Starter
Rookie
Joined: Feb 2014
Posts: 64
Likes: 0
From: NC
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
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
Instructor
Joined: Nov 2009
Posts: 1,049
Likes: 105
From: BOSTON,MA
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.
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.
Rookie
Joined: Feb 2014
Posts: 64
Likes: 0
From: Illinois
Has anyone done any towing with the conversion to springs? I was wondering if the rear of the truck sags much with a heavy trailer attached? I pull a 4,800lb trailer/car about once a month in the warm months.
Intermediate
Joined: Nov 2013
Posts: 368
Likes: 20
From: S.E. WI & Central NV
Thread Starter
Rookie
Joined: Feb 2014
Posts: 64
Likes: 0
From: NC
I was skeptical about making this change, but the ride is much improved. It actually takes bumps well and rides smooth. The rear is higher but I'm told it will settle over time.
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