Jump to content




Photo
- - - - -

Rear Springs ?'s Z71 vs Stock

rear springs z71 vs stock

  • Please log in to reply
14 replies to this topic

#1 OFFLINE   AA1PR

 
AA1PR

    Disabled Adventurer

  • Moderators

  • 8,172 posts
    • Time Online: 54d 20h 4m 31s
2,886
Hail The Almighty!
  • Name:Mike
  • LocationVermont Mountains
  • Occupation:Psych
  • Truck(s):2004 GMC Yukon with 1966 Stevens M416 in tow
Garage View Garage
 

Awards Bar:
Users Awards

Posted 05 November 2012 - 03:52 PM

my rig is a 2004 Yukon SLT with autotrac/stability trac crap

Is there a difference between the Z71 springs & stock springs

new stock springs are $155@

new Z71 springs are $102@

I asked the parts person at the dealership & they did not know or at least would not tell me so

I want some extra heff back there just in case & if they are taller that is even better

anyone know for certain?
___________________________________________________________

2004 GMC Yukon, 4X4 SLT, 5.3L Vortec, ~ Yukon Build Thread
Trail Master 2.5" leveling keys, SkyJacker Shocks -upfront, Monroe MA830 Air shocks rear & MOOG rear coils,  EGR 1.25" Fender Flares
Putco Punch grille insert, gamut of Putco chrome accessories, & IPCW chrome/clear Crystal Eyes taillights
N-Fab light bar & Hella 700FF's,  Running on 33's BFG TA KO 

Radio Comm equipped 3.5mhz to 450 (analog& digital modes), Magellan Roadmate 1700 7" GPS & Delorme handheld

1966 Stevens M416 trailer too ~ M416 Build thread

 

"Now she is gone I got my Yukon"    ExpeditionNorth.com

 

newbanner1.jpg


#2 OFFLINE   Sparg93

 
Sparg93

    Troll Hunter

  • Premium Member
  • 1,801 posts
    • Time Online: 13h 59m 38s
601
Listen To This Guy!
  • Name:Craig
  • LocationBoston, MA
  • Truck(s):1999 Chevy Tahoe (Expedition Style)
Garage View Garage
 

Awards Bar:
Users Awards

Posted 07 November 2012 - 09:06 PM

my rig is a 2004 Yukon SLT with autotrac/stability trac crap

Is there a difference between the Z71 springs & stock springs

new stock springs are $155@

new Z71 springs are $102@

I asked the parts person at the dealership & they did not know or at least would not tell me so

I want some extra heff back there just in case & if they are taller that is even better

anyone know for certain?


Purely a guess, but i'd bet the Z71 springs are stiffer unless you have some form of a heavy duty tow package.

In the Z71 trucks I've come across, their suspensions tend to be stiffer all around - shocks, sway bars, etc. I'm surprised they did different springs b/c of the expense, but that would be my best guess.
___________________________________________________________

sparg93_zpsda69f302.gif

Troll Hunter Build Thread - http://www.gmc4x4.co...n-troll-hunter/

 

GMC4x4 - How To Section - http://www.gmc4x4.co...ow-to-articles/

 

 

 


#3 OFFLINE   02TahoeMd

 
02TahoeMd

    Advanced Member

  • Members
  • PipPipPip
  • 96 posts
    • Time Online: 1d 8h 20m 50s
124
Showoff
  • Name:J.
  • LocationMaryland
Garage View Garage
 

Awards Bar:
Users Awards

Posted 07 November 2012 - 09:30 PM

I have a Tahoe LT and switched out the springs for ones from a Z71 Tahoe. When I did the switch I sat them side by side and found the Z71 springs to be almost two coils taller than the LT springs. I am not sure about what their spring rate may be, but they handled the weight of my rear bumper / tire carrier assembly without any problem.
___________________________________________________________

My CarDomain page    My YouTube Trail Video

02TahoeMdsig_zps55613d46.jpg


#4 OFFLINE   AA1PR

 
AA1PR

    Disabled Adventurer

  • Moderators

  • 8,172 posts
    • Time Online: 54d 20h 4m 31s
2,886
Hail The Almighty!
  • Name:Mike
  • LocationVermont Mountains
  • Occupation:Psych
  • Truck(s):2004 GMC Yukon with 1966 Stevens M416 in tow
Garage View Garage
 

Awards Bar:
Users Awards

Posted 07 November 2012 - 10:33 PM

Sparg93"Purely a guess, but i'd bet the Z71 springs are stiffer unless you have some form of a heavy duty tow package.

In the Z71 trucks I've come across, their suspensions tend to be stiffer all around - shocks, sway bars, etc. I'm surprised they did different springs b/c of the expense, but that would be my best guess. "

I do have the tow package & the autoride stuff too

the parts person was unsure if this was the issue or not, noy much help really I felt


DonYukon"I have a Tahoe LT and switched out the springs for ones from a Z71 Tahoe. When I did the switch I sat them side by side and found the Z71 springs to be almost two coils taller than the LT springs. I am not sure about what their spring rate may be, but they handled the weight of my rear bumper / tire carrier assembly without any problem."

Thank you I thought I remembered you saying something along those lines

Edited by AA1PR, 07 November 2012 - 10:35 PM.

___________________________________________________________

2004 GMC Yukon, 4X4 SLT, 5.3L Vortec, ~ Yukon Build Thread
Trail Master 2.5" leveling keys, SkyJacker Shocks -upfront, Monroe MA830 Air shocks rear & MOOG rear coils,  EGR 1.25" Fender Flares
Putco Punch grille insert, gamut of Putco chrome accessories, & IPCW chrome/clear Crystal Eyes taillights
N-Fab light bar & Hella 700FF's,  Running on 33's BFG TA KO 

Radio Comm equipped 3.5mhz to 450 (analog& digital modes), Magellan Roadmate 1700 7" GPS & Delorme handheld

1966 Stevens M416 trailer too ~ M416 Build thread

 

"Now she is gone I got my Yukon"    ExpeditionNorth.com

 

newbanner1.jpg


#5 OFFLINE   Sparg93

 
Sparg93

    Troll Hunter

  • Premium Member
  • 1,801 posts
    • Time Online: 13h 59m 38s
601
Listen To This Guy!
  • Name:Craig
  • LocationBoston, MA
  • Truck(s):1999 Chevy Tahoe (Expedition Style)
Garage View Garage
 

Awards Bar:
Users Awards

Posted 05 January 2013 - 08:24 AM

Mike - any luck confirming this one?  Did you end up purchasing a set?


___________________________________________________________

sparg93_zpsda69f302.gif

Troll Hunter Build Thread - http://www.gmc4x4.co...n-troll-hunter/

 

GMC4x4 - How To Section - http://www.gmc4x4.co...ow-to-articles/

 

 

 


#6 OFFLINE   jESse

 
jESse

    Advanced Member

  • Premium Member
  • 1,187 posts
    • Time Online: 39d 8h 55m 7s
1,392
GMC Guru
  • Name:jesse
  • LocationMI
  • Occupation:being awesome
Garage View Garage
 

Awards Bar:
Users Awards

Posted 05 January 2013 - 03:01 PM

i've read they're a higher spring rate and usually net around .5" raise over stock. i've got a set sitting around for someday when i feel like climbing under there and putting em on.

 

got mine here

http://www.ebay.com/...e833cf6&vxp=mtr


___________________________________________________________

2003 GMC Yukon - 3" - Fox - XD - Nitto - Rigid Ind - Baja Rack - AEM - CVT
http://www.gmc4x4.co...build-03-yukon/

fefbd336-c1c5-4771-a89b-bc6d8652c4e1_zps

 

faux-toes - https://www.facebook...aflockofpigeons


#7 OFFLINE   DonYukon

 
DonYukon

    The Don

  • Moderators

  • 4,649 posts
    • Time Online: 39d 4h 21m 9s
2,422
Hail The Almighty!
  • Name:Donovan
  • LocationBordentown NJ
  • Occupation:I Moderate Stuff
  • Truck(s):1998 GMC Yukon
Garage View Garage
 

Awards Bar:
Users Awards

Posted 05 January 2013 - 06:42 PM

I know as far as NBS goes that the bumpstops are shorter (which helps flex) and I know that the springs are a little bit taller , as for the sway bars I have no clue 


___________________________________________________________

640cd56c-097e-4a85-a976-91be1f76faad_zps

1998 GMC Yukon 4x4


#8 OFFLINE   Hedge

 
Hedge

    GMC4x4

  • Administrators
  • 5,271 posts
    • Time Online: 61d 16h 34m 1s
2,763
Hail The Almighty!
  • Name:Craig
  • LocationUSA
  • Truck(s):'99 Chevy Tahoe
Garage View Garage
 

Awards Bar:
Users Awards

Posted 01 April 2013 - 06:39 PM

I know as far as NBS goes that the bumpstops are shorter (which helps flex) and I know that the springs are a little bit taller , as for the sway bars I have no clue 

 

Someone once told me the sways were heavier, but I've never confirmed this with measurements.



#9 OFFLINE   AA1PR

 
AA1PR

    Disabled Adventurer

  • Moderators

  • 8,172 posts
    • Time Online: 54d 20h 4m 31s
2,886
Hail The Almighty!
  • Name:Mike
  • LocationVermont Mountains
  • Occupation:Psych
  • Truck(s):2004 GMC Yukon with 1966 Stevens M416 in tow
Garage View Garage
 

Awards Bar:
Users Awards

Posted 01 April 2013 - 10:23 PM

Mike - any luck confirming this one?  Did you end up purchasing a set?

 

 

No I put it off for winter & now I have the auto ride issue to contend with as well

 

I need to find another shop I trust as the last guys were good but went out of business within 6 months (new performance shop in town)


___________________________________________________________

2004 GMC Yukon, 4X4 SLT, 5.3L Vortec, ~ Yukon Build Thread
Trail Master 2.5" leveling keys, SkyJacker Shocks -upfront, Monroe MA830 Air shocks rear & MOOG rear coils,  EGR 1.25" Fender Flares
Putco Punch grille insert, gamut of Putco chrome accessories, & IPCW chrome/clear Crystal Eyes taillights
N-Fab light bar & Hella 700FF's,  Running on 33's BFG TA KO 

Radio Comm equipped 3.5mhz to 450 (analog& digital modes), Magellan Roadmate 1700 7" GPS & Delorme handheld

1966 Stevens M416 trailer too ~ M416 Build thread

 

"Now she is gone I got my Yukon"    ExpeditionNorth.com

 

newbanner1.jpg


#10 OFFLINE   HARDTRAILZ

 
HARDTRAILZ

    Trail Blazer

  • Moderators
  • 1,415 posts
    • Time Online: 33d 10h 52m 15s
1,171
GMC Guru
  • Name:Kyle
  • LocationSE IN
  • Occupation:Real Estate
  • Truck(s):2006 Trailblazer
    1991 Suburban
    1988 S-10
Garage View Garage
 

Awards Bar:
Users Awards

Posted 02 April 2013 - 08:36 AM

Those z71 springs can be bought as new takeoffs for about 60 shipped per pair on ebay. Many trailblazer guys do it for cheap lift. Gives us about 1.5 inches of lift on a lighter vehicle, so I doubt they would give you much. I ran them but hated how firm the ride was. I run Skyjacker lift coils for a tahoe on my TB and love the ride.


___________________________________________________________

79340785-bcb7-4f88-ab8a-7f14d6d04808_zps  2006 TRAILBLAZER  20434ac4-2f57-472b-8c42-0aca6d30eeea_zps

 

Any man who thinks he can be happy and prosperous by letting the Government take care of him, better take a closer look at the American Indian.


#11 OFFLINE   jESse

 
jESse

    Advanced Member

  • Premium Member
  • 1,187 posts
    • Time Online: 39d 8h 55m 7s
1,392
GMC Guru
  • Name:jesse
  • LocationMI
  • Occupation:being awesome
Garage View Garage
 

Awards Bar:
Users Awards

Posted 05 April 2013 - 04:09 PM

ok, finally got around to throwing mine on today. heres a few detailed comparisons of them.

 

i started out by checking fender measurements to see the difference. i measured 36 7/8 on the drivers and 36 3/8 on the passengers. found that rather odd but later found out one of the rough country spacers that was on there dissapeared. don't know if it fell off or broke off or whatever.

 

this is a comparison of slt yukon springs off an 03 with 125k miles vs zero mile z71 springs off a 2010 tahoe

side by side

 

z71's measured in at 16 5/8

 

stock measured in at 15 3/4

 

03 springs measured 5/8" thick

 

z71 springs measure 3/4" thick

 

comparison of the spacers i used. the one on left is whats left of a 3/4" rough country spacer with about a year and a half of use. this was the only one left on the truck. the other dissapeared somewhere. the spacer on the right is a 1.5" spacer from mcbay performance on ebay. made in the USA!

 

 

after install i remeasured everything and came in at a 39.5" fender height on both sides. feels a little firmer in the back now too. looking forward to seeing what a decent set of shocks will feel like with these. again, the rough country crap shocks they sent with the leveling kit are completely shot and really rusty after a year and a half


___________________________________________________________

2003 GMC Yukon - 3" - Fox - XD - Nitto - Rigid Ind - Baja Rack - AEM - CVT
http://www.gmc4x4.co...build-03-yukon/

fefbd336-c1c5-4771-a89b-bc6d8652c4e1_zps

 

faux-toes - https://www.facebook...aflockofpigeons


#12 OFFLINE   Sparg93

 
Sparg93

    Troll Hunter

  • Premium Member
  • 1,801 posts
    • Time Online: 13h 59m 38s
601
Listen To This Guy!
  • Name:Craig
  • LocationBoston, MA
  • Truck(s):1999 Chevy Tahoe (Expedition Style)
Garage View Garage
 

Awards Bar:
Users Awards

Posted 06 April 2013 - 11:59 AM

ok, finally got around to throwing mine on today. heres a few detailed comparisons of them.

 

i started out by checking fender measurements to see the difference. i measured 36 7/8 on the drivers and 36 3/8 on the passengers. found that rather odd but later found out one of the rough country spacers that was on there dissapeared. don't know if it fell off or broke off or whatever.

 

this is a comparison of slt yukon springs off an 03 with 125k miles vs zero mile z71 springs off a 2010 tahoe

side by side

006-5_zpsca58de3d.jpg

 

z71's measured in at 16 5/8

007-4_zps52e84261.jpg

 

stock measured in at 15 3/4

015-5_zps7320b022.jpg

 

03 springs measured 5/8" thick

022-1_zps013d62d8.jpg

 

z71 springs measure 3/4" thick

024_zps33d55d5e.jpg

 

comparison of the spacers i used. the one on left is whats left of a 3/4" rough country spacer with about a year and a half of use. this was the only one left on the truck. the other dissapeared somewhere. the spacer on the right is a 1.5" spacer from mcbay performance on ebay. made in the USA!

020_zps1ca82e81.jpg

 

018-5_zps8e76c8ac.jpg

 

after install i remeasured everything and came in at a 39.5" fender height on both sides. feels a little firmer in the back now too. looking forward to seeing what a decent set of shocks will feel like with these. again, the rough country crap shocks they sent with the leveling kit are completely shot and really rusty after a year and a half

 

You lucky guys and your springs!!


___________________________________________________________

sparg93_zpsda69f302.gif

Troll Hunter Build Thread - http://www.gmc4x4.co...n-troll-hunter/

 

GMC4x4 - How To Section - http://www.gmc4x4.co...ow-to-articles/

 

 

 


#13 OFFLINE   jESse

 
jESse

    Advanced Member

  • Premium Member
  • 1,187 posts
    • Time Online: 39d 8h 55m 7s
1,392
GMC Guru
  • Name:jesse
  • LocationMI
  • Occupation:being awesome
Garage View Garage
 

Awards Bar:
Users Awards

Posted 06 April 2013 - 04:02 PM

lol, don't even need a compressor to swap em in these things either. just pop in and out :P


___________________________________________________________

2003 GMC Yukon - 3" - Fox - XD - Nitto - Rigid Ind - Baja Rack - AEM - CVT
http://www.gmc4x4.co...build-03-yukon/

fefbd336-c1c5-4771-a89b-bc6d8652c4e1_zps

 

faux-toes - https://www.facebook...aflockofpigeons


#14 OFFLINE   Hedge

 
Hedge

    GMC4x4

  • Administrators
  • 5,271 posts
    • Time Online: 61d 16h 34m 1s
2,763
Hail The Almighty!
  • Name:Craig
  • LocationUSA
  • Truck(s):'99 Chevy Tahoe
Garage View Garage
 

Awards Bar:
Users Awards

Posted 09 April 2013 - 10:36 AM

lol, don't even need a compressor to swap em in these things either. just pop in and out :P

 

I have to DROP MY GAS TANK just to get the driver's side rear leaf pack out.  The geniuses at GMC/Chevy decided to put the head of the bolt up against the GAS TANK!!

 

You GMT800/900 guys and your fancy suspensions :)



#15 OFFLINE   noJeepshere

 
noJeepshere

    Driver of Trains

  • Premium Member
  • 1,870 posts
    • Time Online: 33d 17h 2m 56s
1,448
GMC Guru
  • Name:Riley Nelson
  • LocationBountyfull, Utahrd
Garage View Garage
 

Awards Bar:
Users Awards

Posted 25 April 2013 - 12:32 AM

lol, don't even need a compressor to swap em in these things either. just pop in and out :P

 

I have to DROP MY GAS TANK just to get the driver's side rear leaf pack out.  The geniuses at GMC/Chevy decided to put the head of the bolt up against the GAS TANK!!

 

You GMT800/900 guys and your fancy suspensions :)

To be fair GM never really intended for the end user to have a need to remove the springs. But maybe I should look into taking the whole link system out of the back of a gmt800 suv when I do my sas...


___________________________________________________________

th_DSCN2654_zpsf0f662f9.jpg

Find your convictions and stick to them, for it is better to be hated for who you are, than to be loved for who you aren't.

1999 GMC Yukon 4 door
5.7L 4l60e NP246 3.73 gears 265/70-17 a/t's
210,000 miles, Solid Axle Swap coming soon!! No really, it is, just not as fast as I want...

 

I drive this: :train:






Also tagged with one or more of these keywords: rear, springs, z71, vs, stock

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users