Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Suspension/Driveline/Brakes/Wheels/Tires

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #13  
Old 05-17-2011, 07:13 PM
jcnaranjo's Avatar
Premium Member
My Jeep: 2012 6.4L SRT8 WK2
 
Join Date: Mar 2011
Location: PA
Posts: 269
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 1510
jcnaranjo is a splendid one to behold
Completely understood now, thank you!
__________________

__________________
2012 JGC SRT8/Mineral Gray...
MOPAR Chrome Shifter
Reply With Quote
  #14  
Old 05-17-2011, 11:31 PM
Member
My Jeep: 2011 3.6L WK2
 
Join Date: Mar 2011
Location: YUL-LAX
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1237
QCnCA is on a distinguished road
Re: Aftermarket wheels

Here's another question.. How much do the polished 20" overland wheels weigh? Something to take into consideration when getting some new shoes..
__________________

__________________
Reply With Quote
  #15  
Old 05-18-2011, 07:45 AM
Premium Member
My Jeep: 2012 6.4L SRT8
 
Join Date: Dec 2010
Location: Ormond Beach FL
Posts: 1,544
Thanks: 0
Thanked 21 Times in 20 Posts
Rep Power: 2871
mjw930 has a reputation beyond reputemjw930 has a reputation beyond repute
Re: Aftermarket wheels

There are a couple of additional things you need to consider, the backspacing and the roll center. Backspacing is the amount of wheel behind the hub flange. On most vehicles there's a limit before you end up hitting things like the strut tower or fender well when the wheel is turned. Roll center is just like it sounds, it's the location of the center of the wheel/tire around the hub. This measurement is important for front end geometry to work correct. Things like scrub radius count on the roll center to be at a certain place for everything to work as designed. Keeping the roll center within 1" either way is usually ok and is not as important for the rear so running a staggered setup can be done if you need larger rubber on the rear.

I don't know what the limits to backspacing are on the WK2 but I can say that visually the wheels could stand to move out by about an inch. To accomplish this you run a wider wheel with less offset.

It would be great to get the specs of the SRT8's new wheels, that would tell us a lot about how the engineers designed the suspension. Lacking that I thing the following wheels would work well:

9" x 20", 43mm offset
9.5" x 20", 40mm offset

Here's a great visual calculator: http://www.rimsntires.com/specs.jsp
__________________
2012 Grand Cherokee SRT8 Black/Black
Reply With Quote
  #16  
Old 07-15-2011, 12:47 AM
Member
My Jeep: 2011 WK2
 
Join Date: May 2011
Location: Brisbane Qld
Posts: 77
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1231
jaysonf is on a distinguished road
Re: Aftermarket wheels

Great info, Thanks! I love those boss wheels.

I just ordered these wheels and will be fitting them next week. I hope they look good! They are 18x8 with a +40mm offset.

__________________
Reply With Quote
  #17  
Old 10-06-2011, 04:08 PM
Member
 
Join Date: Feb 2011
Location: San Jose, CA
Posts: 228
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 1477
JayB is on a distinguished road
Re: Aftermarket wheels

jaysonf...... would love to see those mounted on the Jeep!!
__________________
Reply With Quote
  #18  
Old 12-19-2011, 07:04 AM
MrWow's Avatar
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Nov 2011
Location: Twin Cities, MN
Posts: 94
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 1066
MrWow is on a distinguished road
Re: Aftermarket wheels

I still haven't seen anything on back spacing? If I am looking at 18x9 w/ 4.75" backspacing will those fit properly on my WK2? I have on wheel left over from my prior JK and love the look of it so if I only need to get 3 wheels I'd be stoked.

EDIT: Does anyone know what the stock 18" wheels weigh?!
__________________
Reply With Quote
  #19  
Old 12-19-2011, 01:44 PM
webspoke's Avatar
Member
My Jeep: 2013 5.7L WK2
 
Join Date: Dec 2010
Location: Dallas
Posts: 177
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 1489
webspoke is on a distinguished road
Re: Aftermarket wheels

Quote:
Originally Posted by MrWow View Post
I still haven't seen anything on back spacing? If I am looking at 18x9 w/ 4.75" backspacing will those fit properly on my WK2? I have on wheel left over from my prior JK and love the look of it so if I only need to get 3 wheels I'd be stoked.

EDIT: Does anyone know what the stock 18" wheels weigh?!
You need back spacing in the 5.5 - 6.5" range (on an 9-9" wheel) to keep the wheel under or just flush with the fender. Mine have 5.7" backspacing on an 18x8.5, and stick out about 1/2" with a 285 tire.
__________________
2014 Ram 2500 4x4 Laramie - more torque to pull the toys
2013 Limited Hemi 4x4 white - Vision wheels with 285/60/18 Terra Grapplers - traded
2011 Overland Hemi 4x4 black/black - retired with QL problems at 46000 miles
Reply With Quote
  #20  
Old 12-19-2011, 03:30 PM
MrWow's Avatar
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Nov 2011
Location: Twin Cities, MN
Posts: 94
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 1066
MrWow is on a distinguished road
Re: Aftermarket wheels

I like that look, if I am running 265/65/18s it probably would stick out no more than yours do right? Or am I totally off..?
__________________
Reply With Quote
  #21  
Old 12-19-2011, 03:41 PM
webspoke's Avatar
Member
My Jeep: 2013 5.7L WK2
 
Join Date: Dec 2010
Location: Dallas
Posts: 177
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 1489
webspoke is on a distinguished road
Re: Aftermarket wheels

Quote:
Originally Posted by MrWow View Post
I like that look, if I am running 265/65/18s it probably would stick out no more than yours do right? Or am I totally off..?
It would probably be close, a quick test fit is the best check, most tire stores should let you. The tightest clearance is when turning, between the inner edge of the tires and the felt fender liner.
__________________
2014 Ram 2500 4x4 Laramie - more torque to pull the toys
2013 Limited Hemi 4x4 white - Vision wheels with 285/60/18 Terra Grapplers - traded
2011 Overland Hemi 4x4 black/black - retired with QL problems at 46000 miles
Reply With Quote
  #22  
Old 12-20-2011, 07:01 AM
MrWow's Avatar
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Nov 2011
Location: Twin Cities, MN
Posts: 94
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 1066
MrWow is on a distinguished road
Re: Aftermarket wheels

True, I am going to be at discount tire anyway getting my prior 35" spare taken off the rim so I might have them toss it on for a looksy. I don't wanna be rolling around like one of those...
__________________
Reply With Quote
  #23  
Old 12-22-2011, 07:21 AM
Member
 
Join Date: Dec 2011
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 940
Gaesek2 is on a distinguished road
Re: Aftermarket wheels

what is the 20'' WK1 SRT's rims specs?
__________________
Reply With Quote
  #24  
Old 12-22-2011, 07:21 AM
Member
 
Join Date: Dec 2011
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 940
Gaesek2 is on a distinguished road
Re: Aftermarket wheels

Quote:
Originally Posted by Gaesek2 View Post
what is the 20'' WK1 SRT's rims specs?
20x9....
__________________

__________________
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
AfterMarket Parts jsouza111 Grand Cherokee - WJ 6 07-27-2011 11:38 PM
Aftermarket hood for the WK. Lifted_up Grand Cherokee - WK 5 07-14-2009 09:23 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 09:53 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community