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11" Brake Upgrade - Tips and Lessons Learned?

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bobevans View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bobevans Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar. 2018 at 3:54am
I happen to find a complete, rusted out 1974 CJ5. Everything swapped over pretty easily. Getting the studs out was tough and I ruined a couple of 9" drums, but wasn't using them anyhow! In the end, I ground off the backs and punched them through. I eliminated the "s" lines, brackets and shields and just set it up like the '74. I also even used the master cylinder from the '74, but had to do a good bit of work to bolt on the MC bracket from a '66 CJ5. This allowed use of dual cylinder MC while keeping the through the floor pedal arrangement. I think Herm the Overdrive Guy has a kit to do the same thing.
'48 CJ2A

'56 DJ3A

'79 CJ7

And two of them actually run!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote flatfender47 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar. 2018 at 2:10am
Sure, no issues.
I am.
1947 CJ2A 225V6 SM420 D30 PLok/D44 D/Locker Warn OD 5:38s
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Post Options Post Options   Thanks (0) Thanks(0)   Quote NCtoy Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar. 2018 at 1:29am
is everybody running 11” brakes with a stock master cylinder?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Unkamonkey Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar. 2018 at 12:35am
You will be happy with the 11 inch brakes. My 3b has them and it stops better than my Commando with 10 inch power brakes.
uncamonkey
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jeeper50 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar. 2018 at 12:16am
I used 4 front axle 11" brake backing plates with correct size wheel cylinders in rear axle and still use my stock ebrake 'cause it works good and holds 4 wheels from rolling when on a hill when required instead of just the rear wheels. 

Belleview ol skool winch soon.
'48 CJ2A 283 V8 sm 420 granny low, tera low D18, overdrive,lockers

Texan at heart,Alabama by retirement

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Post Options Post Options   Thanks (0) Thanks(0)   Quote RICKG Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2018 at 6:08pm
Originally posted by Mark W. Mark W. wrote:

On the rear brakes I had to go to THE JEEP GUY to find the E Brake Spreader NAPA didn't carry those.
 
Well that's just great I've got a set of them + springs in my scrap bin.. I'm still using the T/C drum E- brake. I plugged the E-brake cables in my 11" back-plates..


Edited by RICKG - 28 Feb. 2018 at 6:10pm
I never met a mule I didn't like!
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Keep 'em Rollin'
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark W. Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2018 at 5:48pm
I bought my backing plates then went to NAPA and bought everything that goes inside new. My brakes are built as if they were 68 Wagoneer. On the rear brakes I had to go to THE JEEP GUY to find the E Brake Spreader NAPA didn't carry those.
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1948 2A Body Customized
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67charger Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2018 at 2:36pm
Originally posted by ndnchf ndnchf wrote:

I've been reading a lot of threads on 11" brake upgrades. Many of those threads are old and the photos are dead thanks to Photobucket.  So I thought it would be helpful (at least to me) to start a thread where all you guys who have already done the upgrade can share your tips, tricks, advice and lessons learned.  This will be a big help to those of us who are contemplating the upgrade.  By consolidating this info here, it will be easier to find in the future using the search function.  Photos, part number and sources are encouraged.  I know a lot of you have done this upgrade, please share your experiences so others (ok, at least me Big smile) can benefit.

Off the top of my head, topics that would be helpful would include, but are not limited to:

-Removing studs from hubs, how did you deal with the swaged ring?
Ground the backs off the studs in the drum and knocked them through from drum to hub
-what new studs to use. Left or right threads?
RH
-Brake lines/S - line used or eliminated
I did my 11 inch conversion on the rear with discs in the front
-S line bracket/shield removal or modification
-self adjusting vs adjusting brakes - does it really matter?
Self adjusting/bendix. I like them better but I'm not 100% purist.  Its nice to stop in reverse and have them adjust.
-brake lining material
-problems encountered, how did you deal with it?
Make sure you know where the brakes came from "model year" and make sure you have the backer plates.  Its nice to have all the hardware too so you can compare to new hardware.
-If you were to do it over again, what would you differently? 
Nothing
I'm sure there are others, so please chime in.  Share photos if you have them!

Thanks,
Steve
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 1947-cj2a Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2018 at 2:19pm

Hey jeeper

Just wanted to say thanks on your help for my 11" brake upgrade.

RICH

1947 cj2a (Toy From Hell)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jeeper50 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2018 at 1:46pm
removing studs- I used a deep socket to back up the drum to keep from bending it and a BFH to remove the old lugs.
I installed new R/H longer studs to allow my Jackman rims to have proper stud protrusion past the lugnuts.
I did use the stock flex hoses from the mid seventies CJ5 at first then converted to the Ford F350 DRW wheel cylinders to go back to the stock look.
I my busy world it was a no brainer to get the self energizing brakes from a mid 70s CJ5.
Stock 11" CJ5 brake shoes
Simple bolt on installation. retained my stock MC too. Installed in spring of 2000 and other than shoes all is good.
Maybe drill drums to help clean mud etc out of drums after a trip into mud, sandy water.

Belleview ol skool winch soon.
'48 CJ2A 283 V8 sm 420 granny low, tera low D18, overdrive,lockers

Texan at heart,Alabama by retirement

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Post Options Post Options   Thanks (0) Thanks(0)   Quote ndnchf Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2018 at 1:05pm
I've been reading a lot of threads on 11" brake upgrades. Many of those threads are old and the photos are dead thanks to Photobucket.  So I thought it would be helpful (at least to me) to start a thread where all you guys who have already done the upgrade can share your tips, tricks, advice and lessons learned.  This will be a big help to those of us who are contemplating the upgrade.  By consolidating this info here, it will be easier to find in the future using the search function.  Photos, part number and sources are encouraged.  I know a lot of you have done this upgrade, please share your experiences so others (ok, at least me Big smile) can benefit.

Off the top of my head, topics that would be helpful would include, but are not limited to:

-Removing studs from hubs, how did you deal with the swaged ring?
-what new studs to use. Left or right threads?
-Brake lines/S - line used or eliminated
-S line bracket/shield removal or modification
-self adjusting vs adjusting brakes - does it really matter?
-brake lining material
-problems encountered, how did you deal with it?
-If you were to do it over again, what would you differently? 

I'm sure there are others, so please chime in.  Share photos if you have them!

Thanks,
Steve


Edited by ndnchf - 28 Feb. 2018 at 1:25pm
1948 CJ2A - It goes nowhere fast, but anywhere slow.
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