YJ Rear Disk Brake upgrade - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > YJ Rear Disk Brake upgrade

The ULTIMATE "Selectable" Locker System! BroughRockridge 4WD IS Taking Zone Offroad Suspension Lift Kits WJ Modular Recovery & Bull Bar Relocation Packages

Reply
Unread 03-19-2010, 09:08 AM   #1
Oilfield_Trash
Registered User
1992 YJ Wrangler 
 
Join Date: Aug 2009
Location: Montgomery County Texas
Posts: 11
YJ Rear Disk Brake upgrade

I would like to put disk stoppers on the YJ rears. I would like to do it without buying an expensive kit. Is there any parts from another vehicle that can be modified eaisly to work on the YJ rears?

Oilfield_Trash is offline   Reply With Quote
Unread 03-19-2010, 09:31 AM   #2
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,682
Yep, get a '95-'01 Ford 8.8 rear axle from an Explorer & get disc brakes & MUCH better rear axle.

Don't waste any money (beyond gear lube costs) on a Dana turdy-five.

Max
__________________
Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline   Reply With Quote
Unread 03-19-2010, 09:41 AM   #3
Oilfield_Trash
Registered User
1992 YJ Wrangler 
 
Join Date: Aug 2009
Location: Montgomery County Texas
Posts: 11
are the u-joints and spring mounts the same?
Oilfield_Trash is offline   Reply With Quote
Unread 03-19-2010, 09:55 AM   #4
Oilfield_Trash
Registered User
1992 YJ Wrangler 
 
Join Date: Aug 2009
Location: Montgomery County Texas
Posts: 11
one other question

On the ford 8.8, Is the lug pattertn the same as the Jeep?

Thanks
Oilfield_Trash is offline   Reply With Quote
Unread 03-19-2010, 10:07 AM   #5
DaveinHouston
Registered User
2003 TJ Wrangler 
 
Join Date: Feb 2010
Location: Houston
Posts: 509
Quote:
Originally Posted by Oilfield_Trash View Post
On the ford 8.8, Is the lug pattertn the same as the Jeep?

Thanks
Yep, same bolt pattern. I finished the install on my 8.8 a few weeks back. The disc brakes are a real bonus. I did the swap for the heavier axle, gears and locker and got the disc brakes in the bargain. You can do a complete 8.8 swap for no more than it would cost you to do a disc brake upgrade on your stock axles....if you shop around for the axle and fab the stuff yourself.
__________________
- 2003 Rubicon - 4" Lift, 35" KM2s, 5.13 gears, winch
- 1968 CJ5 - Dauntless V6, T-86, Dana 18, D27 & D44

- NRA Life Member - Licensed to Carry and Do.
DaveinHouston is offline   Reply With Quote
Unread 03-19-2010, 11:47 AM   #6
Alabamaranger
Registered User
1990 YJ Wrangler 
 
Join Date: Sep 2006
Location: Leeds AL, Alabama
Posts: 1,715
dana 35

Disk brakes from a grand XJ is a simple bolt up. Around hear it's about $60.00 for everything
__________________
90 YJ, 4.2 with 2150 carb 4.0 Head and headers, Nutter with TFI and MSD. 1" BL, 2.5" spring lift, 33", Goodrich KM Mud Tires. Dana 30 w Aussie, Ford 8.8 w LS. 9000lb HF Winch.
Alabamaranger is offline   Reply With Quote
Unread 03-19-2010, 11:59 AM   #7
DaveinHouston
Registered User
2003 TJ Wrangler 
 
Join Date: Feb 2010
Location: Houston
Posts: 509
Quote:
Originally Posted by Alabamaranger View Post
dana 35

Disk brakes from a grand XJ is a simple bolt up. Around hear it's about $60.00 for everything
If you can do it that cheap and disc brakes is all you're after that's a good deal.
__________________
- 2003 Rubicon - 4" Lift, 35" KM2s, 5.13 gears, winch
- 1968 CJ5 - Dauntless V6, T-86, Dana 18, D27 & D44

- NRA Life Member - Licensed to Carry and Do.
DaveinHouston is offline   Reply With Quote
Unread 03-19-2010, 12:04 PM   #8
Alabamaranger
Registered User
1990 YJ Wrangler 
 
Join Date: Sep 2006
Location: Leeds AL, Alabama
Posts: 1,715
But it's still a Turdy Five, but now with disk brakes that will hold your axles in for a while.
__________________
90 YJ, 4.2 with 2150 carb 4.0 Head and headers, Nutter with TFI and MSD. 1" BL, 2.5" spring lift, 33", Goodrich KM Mud Tires. Dana 30 w Aussie, Ford 8.8 w LS. 9000lb HF Winch.
Alabamaranger is offline   Reply With Quote
Unread 03-19-2010, 03:17 PM   #9
JeeperDon
Patience, Grasshopper
 
JeeperDon's Avatar
1993 YJ Wrangler 
 
Join Date: Jan 2005
Location: Albuquerque, NM
Posts: 6,330
Quote:
Originally Posted by Oilfield_Trash View Post
are the u-joints and spring mounts the same?
Rear DS u-joint can be whatever you want, since the 8.8 uses a plate type yoke system, whatever plate is used dictates the u-joint size. Plates are easy to get and not expensive. NAPA also has conversion u-joints (I use one), where it's one size on one cross and another on the other cross.

Bolt pattern is the same. Width is close enough not to care. Brake hose from the YJ connects to the 8.8 fine. All that is needed is relocating spring perches and shock tabs. Both of those are easy jobs.
__________________
'93 YJ, '02 GM 4.3 Vortec V6, SOA, dual ARB's, 8.8+D30(w/WarnHubs), 4.88 gears, 35" BFG KM2's, AX15, 15x7 wheels, NP231+4:1+SYE+2LO, York OBA, Warn M8000, no top or doors Apr-Oct.
Member and Web guy: New Mexico 4 Wheelers My Truck Page on NM4W Site
JeeperDon is offline   Reply With Quote
Unread 03-20-2010, 06:14 AM   #10
Oilfield_Trash
Registered User
1992 YJ Wrangler 
 
Join Date: Aug 2009
Location: Montgomery County Texas
Posts: 11
My goal is too get rid od the drum brakes. For what I do with my YJ, the rearend is fine until it grenades. I'm looking tor the cheapest way to get disc brakes. The drum brakes get full of mud, the adjusters stop working. If I go the XJ which sounds to be the eaisest way, is there a way to connect the E-brake. I put new hardware and cylinders and shoes and they still suck. I like to do what I do as close to stock as possible. I believe in the best cheap way. Not necessairly cheap parts in quality, just in price. I want to be able to re-license it some day if necessary. I haul it everywhere now.

Thanks for your comments.
Happy Wheelin'

Oilfield_Trash is offline   Reply With Quote
Unread 03-20-2010, 08:38 AM   #11
thiat302
Registered User
1999 XJ Cherokee 
 
Join Date: Jan 2010
Location: NJ
Posts: 68
What all would you need to grab from the grand xj? Going to replacing my frame soon so I figure do it now while it's all apart- I'd love to do the 8.8 but I have no welding/fab skills whatsoever- but if anyone wants to help me do the 8.8 swap there's beer, pizza, and a small purse as a thank you- haha
__________________
Your pockets better run deep if you want to own a Jeep
thiat302 is offline   Reply With Quote
Unread 03-20-2010, 08:45 AM   #12
TMCXJ
Registered User
1996 ZJ 
 
Join Date: Sep 2006
Location: Clinton, NY
Posts: 1,145
NO, not XJ, it's the ZJ's (mid-'94 -'98) that have the disc brakes.

You've got a 92, you may want to think about the proportioning valve from a 96+ XJ or possibly any ZJ, not sure... a search here or on the XJ forum will help you out a lot.

Anyways, it's the 1st-Gen Grand Cherokees (ZJ) that you want. All XJ's were drum rears unless some1 along the way did the upgrade to ZJ discs. Also, make sure that the ZJ donor axle is a D35 and not the D44-A. Another thing (which I'm fairly certain won't matter to you with the YJ) is that all ZJ's are ABS. Well, maybe one more thing - you may want to also do a search to see if the parking brake cable will be a problem attaching to the ZJ brakes...

ZJ's will fit what you're asking for. Cheap, direct fit (from a D35), and easy. And around here, about $49 including the ridiculous NYS "environmental fee" they impose on the u-pull.
__________________
"...a long habit of not thinking a thing wrong, gives it a superficial appearance of being right, and raises at first a formidable outcry in defense of custom. But tumult soon subsides. Time makes more converts than reason." Thomas Paine
TMCXJ is offline   Reply With Quote
Unread 03-20-2010, 09:51 AM   #13
Oilfield_Trash
Registered User
1992 YJ Wrangler 
 
Join Date: Aug 2009
Location: Montgomery County Texas
Posts: 11
I think I found what i need on the local Craigslist for 150.00. I'm waiting to get a reply to my email.

Also thanks for the XJ / ZJ correcction.

Happy Wheelin'
Oilfield_Trash is offline   Reply With Quote
Unread 03-20-2010, 03:33 PM   #14
JeeperDon
Patience, Grasshopper
 
JeeperDon's Avatar
1993 YJ Wrangler 
 
Join Date: Jan 2005
Location: Albuquerque, NM
Posts: 6,330
You could also just upgrade the front discs, Grand 44 knuckles, and skip the rear. "Wait until it grenades" are other words for "waste money on something I'm going to toss later anyway".
__________________
'93 YJ, '02 GM 4.3 Vortec V6, SOA, dual ARB's, 8.8+D30(w/WarnHubs), 4.88 gears, 35" BFG KM2's, AX15, 15x7 wheels, NP231+4:1+SYE+2LO, York OBA, Warn M8000, no top or doors Apr-Oct.
Member and Web guy: New Mexico 4 Wheelers My Truck Page on NM4W Site
JeeperDon is offline   Reply With Quote
Unread 05-20-2010, 01:29 PM   #15
Oilfield_Trash
Registered User
1992 YJ Wrangler 
 
Join Date: Aug 2009
Location: Montgomery County Texas
Posts: 11
The end result.

Worked great.

http://people.consolidated.net/schul...%20Upgrade.doc



Thanks to all!
Oilfield_Trash is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.