Help with rear disk conversion - Page 2 - 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 Cherokee & Comanche Forums > MJ Comanche Technical Forum > Help with rear disk conversion

Steinjager TJ tube doorsJK Front Lower Adjustable Control Arms!JK Rear Adjustable Control Arms!

Reply
Unread 02-13-2012, 06:28 PM   #16
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
My backing plates are not drilled yet. I wont be doing this till after easter. I do know the GC assembly fits my stock 15" 11 spoke rims. There is like a 1/4" clearance between top of the caliper and the inside of the rim. You should be able to use the explorer backing plate, as the rotor is the same diameter as the GC. Use the GC rotor so you dont have to modify the explorer rotor. Iam trying to find explorer backing plates, they are hard to find up here. My only issue is the clearence between the caliper and rim.

mp15dc is offline   Reply With Quote
Unread 02-13-2012, 07:20 PM   #17
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Ok thanks. Does anyone know where I can purchase Tereflex spacers for this conversion? I can't seem to find the spacers alone.

Also will a emergency brake cable from a Grand Cherokee fit to a explorer backing plate or do I need explorer cables?
JeepComanche89 is offline   Reply With Quote
Unread 02-13-2012, 07:44 PM   #18
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
Phone Tereflex for the spacers, they will sell them seperate.

I dont know how long MJ cables are. But heres some info 96 GC cable overall length 44", housing length 34.5".
GC cable will fit explorer backing plate.
mp15dc is offline   Reply With Quote
Unread 02-14-2012, 08:18 AM   #19
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Alright thanks, that helps.
JeepComanche89 is offline   Reply With Quote
Unread 02-25-2012, 04:25 PM   #20
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Im finnaly ready to press the bearings back onto the shaft. But what I am unsure of what way to place the Teraflex spacers ( tapers facing towards the inside of the axle or towards the rotor?). If anyone knows please let me know thanks.
JeepComanche89 is offline   Reply With Quote
Unread 02-25-2012, 04:56 PM   #21
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
The taper goes inside towards the seal.
mp15dc is offline   Reply With Quote
Unread 02-25-2012, 05:12 PM   #22
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Thanks any reason why?
JeepComanche89 is offline   Reply With Quote
Unread 02-25-2012, 05:26 PM   #23
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
I think for clearance, some seals are not flat, for the dust lip on the outer edge. I dont remember the reason. Its what i have read and makes sense.
mp15dc is offline   Reply With Quote
Unread 02-25-2012, 05:41 PM   #24
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
Hold on, just looked it up. The direction of the taper depends on the type of seal.
If the seal is flat on the outer edge, the retainer goes taper out.
If the seal has a step on the outer edge, the taper goes towards the seal. So the retainer pushes on the outer diameter of the seal and clears the middle of the seal.
mp15dc is offline   Reply With Quote
Unread 02-25-2012, 06:45 PM   #25
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Thanks alot. My seal had the step so taper to the inside. Worked out great. Thanks I couldent find anything
JeepComanche89 is offline   Reply With Quote
Unread 02-25-2012, 07:34 PM   #26
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
No problem. Glad that it worked.
mp15dc is offline   Reply With Quote
Unread 03-18-2012, 07:18 PM   #27
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Just about finished the conversion. Everything is done minus the brake lines. I am unsure about what to do about the brake proportioning valve. If i remove it where do the lines go? There is two running to the back of the truck that both go into the proportioner. Has anyone ever removed this valve with the disk brakes? Any info would be appreciated thanks
JeepComanche89 is offline   Reply With Quote
Unread 03-18-2012, 09:31 PM   #28
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
This valve, is it above the rear axle? Its the height sensing proportioning valve, all it does is regulate the brake pressure to the back wheels. When the box is empty it reduces pressure to prevent rear wheel lockup and the more load in the box the more pressure to the back wheels.
I would not remove the valve. Try the brakes out first, you might have modify the proportioning valve below the master cylinder or replace it with one from a grand cherokee or an aftermarket proportioning valve.
mp15dc is offline   Reply With Quote
Unread 03-19-2012, 03:02 PM   #29
JeepComanche89
Registered User
1989 MJ Comanche 
 
Join Date: Jan 2012
Posts: 2,198
Yes it is the valve mounted to the frame with a bracket and has linkage to the axle sorry for not clarifying. My issue with leaving it installed is that i fear it will hinder the performance of the new disks. Also I have a 4.5 in lift kit, therefore I would have to modify the linkage as it will too short, correct? The truck is disasembled as we speak, so unforunatly I have no way to check the brakes.
JeepComanche89 is offline   Reply With Quote
Unread 03-19-2012, 07:04 PM   #30
mp15dc
Junior Member
1989 XJ Cherokee 
 
Join Date: Feb 2010
Location: Westlock, Alberta,Canada
Posts: 92
Yes, you would have too make the rod longer. How big of tire are going to put on it, 33" or bigger? Are you going to carry a spare? Yes? then i would bypass the valve, as bigger tires are heavier and it would be better to have more pressure to the back brakes. And some weight in the back would help prevent tire lockup. Are you going to put a recovery bumper on? chassis strenghtening?
mp15dc 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.