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rear disc brake conversion

Posted By: Wedgeman

rear disc brake conversion - 02/28/15 10:50 PM

I remember a saw a post where disc brakes can be installed in the rear using new parts such as
Cherokee rotors and small GM caliper or something like that to have an affordable set up.....

Can't retrace the informations....
Can somebody help ?

Thanks
Dan
Posted By: 496 A-body

Re: rear disc brake conversion - 02/28/15 10:57 PM

https://www.quickperformance.com/mobile/Weld-On-Disc-Brake-Kit_p_16007.html3

Or

93 Jeep cherokee front rotors
GM metric calipers
weld on brackets available from Speedway motors


Posted By: Dartin

Re: rear disc brake conversion - 02/28/15 11:12 PM

Speedway Motors weld on brackets, the rotors I used were 2000 Grand Cherokee fronts, and GM metric calipers from I believe mid-80's G body. Whole thing cost me a total of about $150 using all new parts and hardware. Works great!

Randy
Posted By: Wedgeman

Re: rear disc brake conversion - 02/28/15 11:21 PM

Great ! can someone give me a precise application for the rotors ?
Guys at the counter are diffucult to work with sometimes.....

Dan
Posted By: Wedgeman

Re: rear disc brake conversion - 02/28/15 11:29 PM

Also, what type of master cylinder should I use ?
For 67 Barracuda

Attached picture 8444030-Wheelsup!.jpg
Posted By: toplescuda

Re: rear disc brake conversion - 02/28/15 11:52 PM

I used 95 jeep grand Cherokee for the rotors 88 bucks for the pair. 92 s10 caliper 11 bucks each and bracket from jegs. Was like 12-15 bucks
Posted By: 496 A-body

Re: rear disc brake conversion - 02/28/15 11:54 PM

93 Cherokee rotors will get you what you need, that same rotor is used in a lot of Jeep applications so I'm sure other years/models will work as well.
A 93 Dakota master cylinder will work well
Posted By: Wedgeman

Re: rear disc brake conversion - 03/01/15 12:08 AM

Do you need a shorter-longer pushrod for the Dakota Master cyl ?
Posted By: 496 A-body

Re: rear disc brake conversion - 03/01/15 12:34 AM

Adjustable pushrod and 4 to 2 bolt adapter will make the install easy
Posted By: Wedgeman

Re: rear disc brake conversion - 03/01/15 01:09 AM

do you install the caliper at the front of wheel or behind....

Someone has pics ?
Thanks
Posted By: Dartin

Re: rear disc brake conversion - 03/01/15 01:57 AM

Not sure if it really makes a difference, but mine are installed with caliper rearward. Also, you may want to install an adjustable proportioning valve between the master cylinder and the rear line to adjust front/rear bias.

Randy
Posted By: Dartin

Re: rear disc brake conversion - 03/01/15 02:06 AM

Another thing worth mentioning, my rotors had to be machined slightly to seat completely over the flanges on my axles. Not much, and may have been the cheap rotors I bought. When I installed mine I put an air fitting in the caliper and bolted the caliper to the bracket. Tightened the lug nuts on the rotor and slid the caliper with pads and bracket over the rotor and placed them where I wanted them. Put an air hose to the caliper to "clamp" it to the rotor and tack it up!

Randy
Posted By: Wedgeman

Re: rear disc brake conversion - 03/03/15 05:10 AM



Install a 92 Dakota MC..
What if I keep the stock disc master cylinder ?
Thanks
Posted By: SRT440DUSTER

Re: rear disc brake conversion - 03/07/15 12:06 AM

Can someone post the exact brackets needed? Speedway has alot of choices
Posted By: 496 A-body

Re: rear disc brake conversion - 03/07/15 12:22 AM

Part # 91641009
Posted By: Wedgeman

Re: rear disc brake conversion - 03/07/15 01:19 AM

I just bought from
Allstar performance no. 42102

Dan
Posted By: mopar65

Re: rear disc brake conversion - 03/07/15 02:07 AM

Quote:

I remember a saw a post where disc brakes can be installed in the rear using new parts such as
Cherokee rotors and small GM caliper or something like that to have an affordable set up.....

Can't retrace the informations....
Can somebody help ?

Thanks
Dan




here is the post you was looking for.
https://board.moparts.org/ubbthreads/show...part=1&vc=1

hope this helps and i have been saving up the parts to do this to my 73 big block duster.
Posted By: dodgedifferent2

Re: rear disc brake conversion - 03/07/15 03:37 AM

rear disc on 8 3/4

http://www.forabodiesonly.com/mopar/showthread.php?t=128394
Posted By: Wedgeman

Re: rear disc brake conversion - 03/07/15 03:09 PM

Can I keep the stock MC ?
Posted By: mr_340

Re: rear disc brake conversion - 03/08/15 12:56 AM

I was looking at the 1993 Jeep rotors and they appear to be close to 11" diameter and the brackets seem to be designed for the larger 11-3/4" rotors. Do the brackets need to be re-radiused to move the calipers closer to the axle centerline by 3/8"?
Posted By: Wedgeman

Re: rear disc brake conversion - 03/08/15 01:33 AM

Heyyyyyyy !!!!

I just tried them on 5 min ago......

I have the same problem! someting need to be done there lollll

The bracket is too long, or I need 11 3/4 rotors too........

Anyone has comments on that ?

Thanks
Posted By: 340B5

Re: rear disc brake conversion - 03/08/15 02:13 AM





MD7790 - MOPAR 8 3/4 AND DANA 60 REAR DISC BRAKE CONVERSION SET WITHOUT PARKING BRAKE


Looking to convert your Mopar to rear disc brakes? This complete rear disc conversion set has what you need for an easy conversion.
Set includes: •Single piston loaded rear calipers
•Dana 60 and 8-3/4" rear end caliper brackets
•Standard rear rotors with 5 X4-1/2" bolt pattern
•Rubber flex hoses
•Mounting hardware


Important: Requires "Green" bearings part # + Learn More



Product #: MD7790


In Stock Now!


MSRP: $379.99 set

Classic: $344.99 set



Quantity:


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Oversize Freight Type:
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MOPAR 8 3/4 AND DANA 60 REAR DISC BRAKE CONVERSION SET WITHOUT PARKING BRAKE - Continued


Looking to convert your Mopar to rear disc brakes? This complete rear disc conversion set has what you need for an easy conversion.
Set includes: •Single piston loaded rear calipers
•Dana 60 and 8-3/4" rear end caliper brackets
•Standard rear rotors with 5 X4-1/2" bolt pattern
•Rubber flex hoses
•Mounting hardware


Important: Requires "Green" bearings part # MM3063 (sold separately) on models with 8-3/4" rear ends.

Note: Minimum 15" wheels required. Shipped oversize

-----------Found this @ Classic industries
Posted By: Wedgeman

Re: rear disc brake conversion - 03/08/15 03:54 AM

Quote:

I was looking at the 1993 Jeep rotors and they appear to be close to 11" diameter and the brackets seem to be designed for the larger 11-3/4" rotors. Do the brackets need to be re-radiused to move the calipers closer to the axle centerline by 3/8"?



Sure looks like it !...

Better to push the bracket toward the calipers and drill 2 other holes for the brake pins......

Dan
Posted By: hemi-itis

Re: rear disc brake conversion - 03/08/15 05:04 AM

Those GM calipers didn't work well new,what has changed that would want me to put them on the back of my 3900 lb car that goes 140+ in the 1/4 mile??
Posted By: toplescuda

Re: rear disc brake conversion - 03/08/15 06:01 PM

Yes I moved mine down closer to the rotor
Posted By: Wedgeman

Re: rear disc brake conversion - 03/08/15 08:24 PM

I cut the radius 5/8 in closer to the axle so the pads fully contact the rotors.
I made a fitting to plug into the air hose and apply pressure on the rotor to square it, works like a charm !

Tac weld, remove the calipers and fully weld on both sides...

Attached picture 8453494-RotationofDSC_1928.JPG
Posted By: Dartin

Re: rear disc brake conversion - 03/08/15 09:15 PM



Randy
Posted By: Wedgeman

Re: rear disc brake conversion - 03/09/15 12:09 AM

Thanks bud !

Dan
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