Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > Grand Cherokee Tech
Register Forgot Password?
Search


Welcome to Cherokee Forum!
Welcome to Cherokee Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 03-18-2012, 03:19 PM   #1
CF Veteran
 
Bustedback's Avatar
 
Join Date: Feb 2010
Location: Oroville, CA
Posts: 10,435

View Bustedback's Photo Album My Photos
1995 Grand Cherokee
Default WJ to ZJ front Brake Swap

I'm planning on swapping the front rotors and calipers from a WJ to the front of my ZJ. It should be a pretty easy swap, but my question is will my 15" wheels still fit with the larger WJ rotors and calipers? Anybody done this swap?
__________________
Steering stabilizers will not cure or cause death wobble, they only mask the real problem that is causing death wobble. Oil pumps do not make pressure, they create flow. Bearing clearence and restrictions make pressure. It's the crank sensor.
Bustedback is offline   Reply With Quote
Old 03-18-2012, 03:41 PM   #2
Seasoned Member
 
Join Date: Feb 2011
Location: Cunningham, TN
Posts: 331

View blackjack12982's Photo Album My Photos
1994 Grand Cherokee
Default

I had planned on doing this swap before I acquired a "big boy" set of axles. What wheels are you running? The stuff I have read on the internetz says a set of 3.75-4" BS 15" rim will clear, the deeper stock rims won't without some pretty hefty grinding on the calipers.


Make sure you get the Akebono calipers if you're doing the swap, the Teves calipers ended up being recalled by Jeep.
__________________
1994 ZJ w/ 5.2, rebuilt 46RH, 231 swap, HP30 swap regeared to 3.73, homemade rock sliders, roof rack w/ 4 Hella's, K&N FIPK, Mopar Performance PCM, trimmed fenders, F>R swap w/ 2" BB, and 35" KM2's.
blackjack12982 is offline   Reply With Quote
Old 03-18-2012, 03:56 PM   #3
Senior Member
 
1slo_camaro's Avatar
 
Join Date: Oct 2011
Location: Cape May, NJ
Posts: 625

View 1slo_camaro's Photo Album My Photos
1998 Grand Cherokee
Default

whats the difference? larger rotors?
__________________
94 V6 A4>>>>LT1 M6>>>>>>383 M6 13.1 @ 109 2.2 60'Sold/Stripped
1992 Camaro RS 305 700r4 Convert.
1998 ZJ Grand Cherokee 4.0 awaiting lift and 32s
"Life is full of decisions, You make them and don't look back"

PM me for 99+ intake manifolds for sale
$50-bare
$60-sandblasted unpainted
$75-sandblasted and painted
1slo_camaro is offline   Reply With Quote
Old 03-18-2012, 03:57 PM   #4
Seasoned Member
 
Join Date: Feb 2011
Location: Cunningham, TN
Posts: 331

View blackjack12982's Photo Album My Photos
1994 Grand Cherokee
Default

Quote:
Originally Posted by 1slo_camaro View Post
whats the difference? larger rotors?
Bigger rotors, dual piston calipers, crossover steering...
__________________
1994 ZJ w/ 5.2, rebuilt 46RH, 231 swap, HP30 swap regeared to 3.73, homemade rock sliders, roof rack w/ 4 Hella's, K&N FIPK, Mopar Performance PCM, trimmed fenders, F>R swap w/ 2" BB, and 35" KM2's.
blackjack12982 is offline   Reply With Quote
Old 03-18-2012, 03:59 PM   #5
CF Veteran
 
Bustedback's Avatar
 
Join Date: Feb 2010
Location: Oroville, CA
Posts: 10,435

View Bustedback's Photo Album My Photos
1995 Grand Cherokee
Default

The knuckles have to be swapped too?
Attached Thumbnails
WJ to ZJ front Brake Swap-100_0351.jpg  
__________________
Steering stabilizers will not cure or cause death wobble, they only mask the real problem that is causing death wobble. Oil pumps do not make pressure, they create flow. Bearing clearence and restrictions make pressure. It's the crank sensor.

Last edited by Bustedback; 03-18-2012 at 04:07 PM.
Bustedback is offline   Reply With Quote
Old 03-18-2012, 04:01 PM   #6
Seasoned Member
 
Join Date: Feb 2011
Location: Cunningham, TN
Posts: 331

View blackjack12982's Photo Album My Photos
1994 Grand Cherokee
Default

Quote:
Originally Posted by Bustedback View Post
The knuckles have to be swapped too?
Ughhhhh, yeah. I'll just post this here for you, it's one of the most complete swap threads there is.

http://www.pirate4x4.com/forum/showthread.php?t=489905
__________________
1994 ZJ w/ 5.2, rebuilt 46RH, 231 swap, HP30 swap regeared to 3.73, homemade rock sliders, roof rack w/ 4 Hella's, K&N FIPK, Mopar Performance PCM, trimmed fenders, F>R swap w/ 2" BB, and 35" KM2's.
blackjack12982 is offline   Reply With Quote
Old 03-18-2012, 04:20 PM   #7
Senior Member
 
country_boy454's Avatar
 
Join Date: Jan 2010
Location: Mt. Iron, MN
Posts: 704

View country_boy454's Photo Album My Photos
96 Limited ZJ Grand Cherokee
Default

The parts you need:
99-04 WJ knuckles (JY-$40)
99-04 WJ calipers (JY- $40)
99-04 WJ ball joints (alljeeps.com- $72)
99-04 WJ brake pads (autozone- $50)
99-04 WJ rotors (autozone- $70)
91 XJ hub bearings (autozone- $150)
Re-drill rotors to 5x4.5 (Machine work- $75)

This is just like changing ball joints.

Step 1- Remove everything down to the ball joints.
Step 2- Install new WJ ball joints, the uppers are the same but the lowers have a different taper.
Step 3- Install WJ knuckles. Tq upper castle nut to 75 ft lbs and lower to 80 ft lbs.
Step 4- You might have to swap studs from the 98 hubs to the 91 hubs due to knurl poking through hub. (all depends on the size stud hole on the rotor)
Step 5- Install 91 XJ hubs onto the WJ knuckles. Make sure you use a 13mm 12 point and Tq to 75 ft lbs.
Step 6- You can reuse your stock brake line, but you have to grind off the the tab on the back of the new caliper (not sure if you have do this with the Tevis calipers) The reason is b/c the tab will make the line point down and cause the line to rub on the wheel on turns. YOU HAVE TO MAKE SURE THE LINE IS GOING UP!
Step 7- Install the rotor and calipers, make sure to put some blue loc-tite on the caliper bolts that attach them to the knuckles!
Step 8- Install the brake line, PLEASE MAKE SURE YOU CHECK STEP 6 AND THAT YOU HAVE NO BRAKE LINE INTERFERENCE!!!
Step 9- Re-attach all steering components, your toe is going to be way off. The stock/lowered V8 ZJ's have plenty of thread left to adjust the toe to specs. You will need to set as close as possible then take to a shop to have done, unless you have the know-how to do at home.
Step 10- Bleed brakes.
Step 11- Break in your new brakes and enjoy.

The only thing that I have not got worked out yet is the ABS. The sensor is smaller on the WJ's.

So there you have a "big brake" upgrade kit for around $500
__________________
93 ZJ sold
95 ZJ parted out, sold
96 ZJ Laredo 4.0 103k miles
96 ZJ Limited 5.2 w/ 5.9 hood, grille, plus more
97 ZJ parting out
98 ZJ TSi sold
96 XJ lifted trail rig
87 MJ traded

Last edited by country_boy454; 03-18-2012 at 04:22 PM.
country_boy454 is offline   Reply With Quote
Old 03-18-2012, 04:34 PM   #8
CF Veteran
 
Bustedback's Avatar
 
Join Date: Feb 2010
Location: Oroville, CA
Posts: 10,435

View Bustedback's Photo Album My Photos
1995 Grand Cherokee
Default

Well maybe I'll start sourcing the parts and when my tires that I have now finally wear out I'll upgrade to some 16" wheels and do the swap then. Thanks for all of the info guys!
__________________
Steering stabilizers will not cure or cause death wobble, they only mask the real problem that is causing death wobble. Oil pumps do not make pressure, they create flow. Bearing clearence and restrictions make pressure. It's the crank sensor.
Bustedback is offline   Reply With Quote
Old 03-21-2012, 12:29 PM   #9
Junior Member
 
19XJ96's Avatar
 
Join Date: Jul 2010
Location: Victorville, Ca
Posts: 86

View 19XJ96's Photo Album My Photos
1996 Cherokee
Default

Why exactly 91 hubs? Im thinking about doing this swap and I have a 96 xj, Will my hubs work? I was reading that 2000+ hubs were needed.
19XJ96 is offline   Reply With Quote
Old 03-21-2012, 02:18 PM   #10
Senior Member
 
country_boy454's Avatar
 
Join Date: Jan 2010
Location: Mt. Iron, MN
Posts: 704

View country_boy454's Photo Album My Photos
96 Limited ZJ Grand Cherokee
Default

This way you dont have to weld spacers onto the knuckles
__________________
93 ZJ sold
95 ZJ parted out, sold
96 ZJ Laredo 4.0 103k miles
96 ZJ Limited 5.2 w/ 5.9 hood, grille, plus more
97 ZJ parting out
98 ZJ TSi sold
96 XJ lifted trail rig
87 MJ traded
country_boy454 is offline   Reply With Quote
Old 03-21-2012, 03:58 PM   #11
Junior Member
 
19XJ96's Avatar
 
Join Date: Jul 2010
Location: Victorville, Ca
Posts: 86

View 19XJ96's Photo Album My Photos
1996 Cherokee
Default

So 91 hubs will work.....
19XJ96 is offline   Reply With Quote
Old 03-21-2012, 07:34 PM   #12
Junior Member
 
19XJ96's Avatar
 
Join Date: Jul 2010
Location: Victorville, Ca
Posts: 86

View 19XJ96's Photo Album My Photos
1996 Cherokee
Default

Oh and 15" wheels will fit, I was at my local junkyard and took a stock 15x7 Cherokee wheel and it fit except the lugs of course.
19XJ96 is offline   Reply With Quote
Old 03-24-2012, 11:16 AM   #13
Member
 
lestatsghost's Avatar
 
Join Date: Aug 2009
Location: Centinnial, CO
Posts: 137

View lestatsghost's Photo Album My Photos
2004 Grand Cherokee
Default

If you have 15" alloy wheels they are going to be a very tight fit even with spacers/adapters. I had some 1.25" spacers made 5x5 hub to 5x4.5 wheel and tried to use wheels from a ZJ on my WJ. Plenty of room on the inside of the wheel for the caliper but scraped slightly on the backside of the wheel and caliper. Steel wheels have more room as they are thinner at the bead. My BS with the spacers was 3.75. If the WJ hubs will work I would wait and just move to 5x5 bolt pattern then grab wheels from Craigslist. Look for wj, wk, jk, and xk wheels they are all 5x5. Or just get 15" d-window or soft 8 steelies made by crager or unique either 5x4.5 and 5x5 have the correct back spacing needed to clear the caliper. You may still need to grind down the outside of the caliper though so it won't contact the wheel inside drop. The reason I would stick to 15" is the tires are cheaper when you go bigger
__________________
2004 WJ Special Edition V8
2" Tera-Flex BB
31x10.5r15's mounted on Crager Soft 8's - yes they fit
Rancho RS5000 Shocks RS5239 front RS5194 rear
lestatsghost is offline   Reply With Quote
Old 12-22-2013, 09:12 AM   #14
Newbie
 
Join Date: Dec 2013
Location: rio de janeiro
Posts: 1

View marushio's Photo Album My Photos
1998 Cherokee
Default

well , i have a 98 5.9l JGC. Can i use the SRT8 system? any help?

thanks
marushio is offline   Reply With Quote
Old 12-22-2013, 09:12 AM
 
 
 
submit to reddit
Reply

Go Back   Jeep Cherokee Forum > Technical Discussion > Grand Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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



All times are GMT -5. The time now is 08:35 PM.


This site is in no way affiliated with Jeep or Chrysler.

Emails Backup