Mix & match CJ-YJ Brakes - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 03-13-2005, 09:44 PM Thread Starter
Journeyman
 
Join Date: Jan 2002
Location: Harford County Maryland
Posts: 125
Thanks: 0
Thanked 0 Times in 0 Posts
 
Mix & match CJ-YJ Brakes

Did a search and came up with a WHOLE lotta stuff but nothing concerning my situation. I've got a 90 Wrangler tub on my 78 CJ frame. The CJ had manual disc/drum brakes. The YJ had Power disc/drum brakes. I currently have the 90 YJ booster/MC proportioning valve set-up installed. I will be swapping on an Offenhauser 4V intake and am concerned about interference between the brake lines and the carb/intake. My 78 CJ had the brake lines exiting the MC towards the outside the YJ power set-up has the lines exiting towards the inside. Can I use my good CJ MC (from a non power application) with the YJ booster? And if so, what about the proportioning valve? Should I use the CJ or the YJ one? Or another one? tires are 33X12.50's This is an in progress project that I'm not currently driving. I am assuming that I'm better off keeping some sort of power brakes but honestly, my CJ stopped pretty good with non-power brakes but already having all the YJ power stuff makes keeping the power seem like a good idea.

Thanks,
7T8CJ7 is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 03-13-2005, 11:32 PM
Can't Get Enough
 
jeeperjohn's Avatar
 
Join Date: Sep 1999
Location: The Plywood State.... Florida
Posts: 1,340
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

I believe the 88 YJ had the lines exiting the left side of master cylinder. check the caliper piston and wheel cylinder sizes of the CJ and the YJ. If they are the same my guess would be use the 88 master cylinder and the YJ proportioning valve. The advance Auto Parts website shows the same part number for the brake boosters so use the YJ one.
jeeperjohn is offline  
post #3 of (permalink) Old 03-13-2005, 11:56 PM
 
Join Date: May 2001
Posts: 3,501
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

YJ ones exit out towards the passanger side.
Infernozx is offline  
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 03-14-2005, 05:28 AM
Can't Get Enough
 
jeeperjohn's Avatar
 
Join Date: Sep 1999
Location: The Plywood State.... Florida
Posts: 1,340
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

They sure do. My bad.
jeeperjohn is offline  
post #5 of (permalink) Old 03-14-2005, 07:53 AM
 
Join Date: Sep 1999
Posts: 2,006
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

The YJ's all have the brake lines on the passenger side as stated, now think a little here [img]images/graemlins/grin.gif[/img].
There is no difference in the placement of the master cylinder, carb or motor from the CJ / YJ so other than line placement there should be plenty of room right [img]images/graemlins/grin.gif[/img].
That said the line on the YJ are basicly under the master and they come up the passenger side and have a tight 90* into the master.
here are a few pic.

and another, as you can also see the MC2100 fits nicely with a 9"filter element [img]images/graemlins/grin.gif[/img]


and NO you can't use the non power unit on a power system.
GP'n is offline  
post #6 of (permalink) Old 03-15-2005, 08:47 PM Thread Starter
Journeyman
 
Join Date: Jan 2002
Location: Harford County Maryland
Posts: 125
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

Thanks all (esp GP'n for the photos)
7T8CJ7 is offline  
post #7 of (permalink) Old 03-18-2005, 11:17 AM
 
Join Date: Feb 2005
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

Keep the YJ valve, could have kept the CJ valve. If you want a master that is a direct mount and goes towards the wheel well let me know and I will look it up.
Vancopbs is offline  
post #8 of (permalink) Old 03-21-2005, 08:47 PM Thread Starter
Journeyman
 
Join Date: Jan 2002
Location: Harford County Maryland
Posts: 125
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Mix & match CJ-YJ Brakes

Van,
I still have all the CJ stuff too. Is the CJ better or just acceptable? Yes, I might well be interested in the drivers side exit M/C,
Thanks
7T8CJ7 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome