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8 3/4 rear Disc brake kits #2031399
03/15/16 12:25 AM
03/15/16 12:25 AM
Joined: Oct 2010
Posts: 461
Rescue CA.
joes68340s Offline OP
mopar
joes68340s  Offline OP
mopar

Joined: Oct 2010
Posts: 461
Rescue CA.
I'm looking for a kit that uses the factory adjustable bearings. Every kit I have looked at is for green bearings. Am I stuck using those crappy bearings.

Re: 8 3/4 rear Disc brake kits [Re: joes68340s] #2031414
03/15/16 12:52 AM
03/15/16 12:52 AM
Joined: Sep 2006
Posts: 220
Portland, OR
shawge Online content
enthusiast
shawge  Online Content
enthusiast

Joined: Sep 2006
Posts: 220
Portland, OR
Have you looked at DrDiff's kits?

http://www.doctordiff.com/brakes/rear/

Re: 8 3/4 rear Disc brake kits [Re: joes68340s] #2031424
03/15/16 01:09 AM
03/15/16 01:09 AM
Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101 Offline
I got lucky at Woodward!
MuuMuu101  Offline
I got lucky at Woodward!

Joined: Dec 2010
Posts: 12,375
SoCal
Nope. As far as I know, Dr Diff is the only ones you can use tapered bearings with.

Re: 8 3/4 rear Disc brake kits [Re: MuuMuu101] #2031437
03/15/16 01:32 AM
03/15/16 01:32 AM
Joined: Oct 2010
Posts: 461
Rescue CA.
joes68340s Offline OP
mopar
joes68340s  Offline OP
mopar

Joined: Oct 2010
Posts: 461
Rescue CA.
Ok Thanks I missed that one.

Re: 8 3/4 rear Disc brake kits [Re: joes68340s] #2031873
03/15/16 07:53 PM
03/15/16 07:53 PM
Joined: Jan 2007
Posts: 7,664
IN
A
ahy Offline
master
ahy  Offline
master
A

Joined: Jan 2007
Posts: 7,664
IN
Here is a pic of the Dr Diff setup. I had roasted my drums at a track day and next time out had this disk setup. Worked great and much better balanced braking.

To dial in the end play you need to slightly lengthen one axle or add adjusters on both sides. I lengthened the axle by welding a small thick hardened washer on the end.



Re: 8 3/4 rear Disc brake kits [Re: ahy] #2031978
03/15/16 10:24 PM
03/15/16 10:24 PM
Joined: Oct 2010
Posts: 461
Rescue CA.
joes68340s Offline OP
mopar
joes68340s  Offline OP
mopar

Joined: Oct 2010
Posts: 461
Rescue CA.
Thanks good to know.

Re: 8 3/4 rear Disc brake kits [Re: joes68340s] #2041042
03/29/16 09:26 AM
03/29/16 09:26 AM
Joined: Aug 2005
Posts: 403
30 miles west of EuroDisney
fbernard Offline
mopar
fbernard  Offline
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Posts: 403
30 miles west of EuroDisney
I did manage to setup a Wilwood kit with OEM bearings a few years back, but I had to have someone fabricate a metal piece on a lathe to put inside the diff, between the two axles, so they could butt against each other (tapered bearings equalize the load on both wheel bearings, so you need to be able to tighten the axles together to almost zero lash).
The Wilwood aluminum flanges added a lot of distance compared to the drum backing plates, so much the adjuster could not be used alone to correct this. If you're having new axles custom made, you can add the difference to their length.

If I had to do it again though, I'd go with a kit from DrDiff, as :
- The Wilwood inner drums for a parking brake are a joke, they do not brake worth a damn, and the aluminum flange can bend *very* easily.
- Everything I've ever bought from DrDiff was top notch, *really* bolt-on stuff.

Re: 8 3/4 rear Disc brake kits [Re: fbernard] #2041099
03/29/16 11:11 AM
03/29/16 11:11 AM
Joined: Dec 2003
Posts: 21,954
Trumussia
J
jcc Offline
If you can't dazzle em with diamonds..
jcc  Offline
If you can't dazzle em with diamonds..
J

Joined: Dec 2003
Posts: 21,954
Trumussia
Not clear to me in your comment, are the Wilwood's an effective "parking brake"?


If you can't dazzle them with diamonds, don't waste your time, because nothing will
Re: 8 3/4 rear Disc brake kits [Re: fbernard] #2041127
03/29/16 11:47 AM
03/29/16 11:47 AM
Joined: Nov 2004
Posts: 25,046
Texas
GoodysGotaCuda Offline
5.7L Hemi, 6spd
GoodysGotaCuda  Offline
5.7L Hemi, 6spd

Joined: Nov 2004
Posts: 25,046
Texas
Originally Posted By fbernard


If I had to do it again though, I'd go with a kit from DrDiff, as :
- The Wilwood inner drums for a parking brake are a joke, they do not brake worth a damn, and the aluminum flange can bend *very* easily.


Not surprising, internal drum parking brakes are notoriously weak. Even my factory Jeep Wrangler setup never worked well from day one. The small diameter requires a pretty high clamping load to get to the holding power of a "normal" 10-11" diameter drum brake.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: 8 3/4 rear Disc brake kits [Re: jcc] #2041944
03/30/16 01:27 PM
03/30/16 01:27 PM
Joined: Aug 2005
Posts: 403
30 miles west of EuroDisney
fbernard Offline
mopar
fbernard  Offline
mopar

Joined: Aug 2005
Posts: 403
30 miles west of EuroDisney
Originally Posted By jcc
Not clear to me in your comment, are the Wilwood's an effective "parking brake"?


I wrote "they do not brake worth a damn".

As in "Start the engine, drive off, and if you notice a slight drag after a couple minutes of driving around, you probably forgot to release the parking brake".

Wilwood's calipers, rotors and hats are pretty good in my opinion, but the hardware is not.







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