MY 14 Bolt Corporate Full Floater Disc Brake Conversion - Pirate4x4.Com : 4x4 and Off-Road Forum
 
Pirate4x4.Com : 4x4 and Off-Road Forum  

Go Back   Pirate4x4.Com : 4x4 and Off-Road Forum > Brand Specific Tech > Chevy
Notices

Reply
 
Share Thread Tools Display Modes
Old 12-05-2006, 07:51 PM   #1 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
MY 14 Bolt Corporate Full Floater Disc Brake Conversion

Here is my 14 bolt disc brake conversion.

I used all 1 ton parts mainly just to see if I could do it....I also was not pleased that the 3/4 ton kit had problems with both the studs and the fact that the rotor did not have any place to sit on the hub.

I solved these problems using 1 ton dually rotors and a machined ring that fits between the rotor and hub. and as you can see I made a spacer to take up the gap between the axle housing and the caliper bracket.

also here is a list of GM parts I used for anyone that wants to know what they are.

3977397 HUBS Rear Wheel 162.00
9428908 GM INNER BEARING & RACE 30.00
15702309 HUB SNAP RING 5.50
7451928 GM OUTER BEARING & RACE
9436881 45.00
Rotor 1985 Chevy front dually Bendix 141468 # Centric 120.66004
page 85 of the Centric rotors and drums Technical guide.
Napa #'s 85822 superceeded by Napa 4885822
CONCENTRIC RINGS MACHINE SHOP
3988538 GM WHEEL STUDS 16 1.04 ea
469694 SEAL 11.04
15665667 CALIPER Left 145.00
15665668 CALIPER Right 145.00
BENDIX PADS
Caliper bracket 1985 Chevy Dana 60 right and left sides


FRONT DISC BRAKE HARDWARE KIT Bendix Part Number H5529

12338037 CALIPER LOCK BOLT 1.71
14023437 SPRING 3.85
14023439 KEY 2 16.00
462813 SHIELD 22.00
462814 SHIELD 22.00
341509 Spindle nut 16.00
12471641 Axle gasket 4.50

Brake lock I used http://www.mico.com/

20 lbs each before.

10 lbs each after.


Pic Below is mocking up the rotor / caliper to know how thick the adapter needed to be.














Here is the truck.

And here are the Military shelters that its built to carry.

Last edited by ParadiseAutoElectric; 01-08-2010 at 08:41 AM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-05-2006, 08:25 PM   #2 (permalink)
Rock God
 
nvrenuf's Avatar
 
Join Date: Mar 2002
Member # 10903
Location: Mobile, Alabama
Posts: 1,649
Very nice.


Have you driven it yet? If so, how was the pedal feel? What master cylinder? I've been wondering if a D60 caliper would require more fluid than an average m/c can move.

I built a similar set up for my D70HD. On my set up I used the original DRW bearing hubs but I am now considering swapping to SRW hubs to gain some WMS width - can you make more spacers? I may need something around 2" thick with only the caliper bracket bolt pattern (thru holes, no threads).
__________________
John

'91 K5 454, 4spd, Doubler, J76/70HD, 5.86's & 43's
Build Pics & Build Thread


happy..happy..happy....
nvrenuf is offline   Reply With Quote
Sponsored Links
Old 12-05-2006, 08:33 PM   #3 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
Haven't driven it yet still have to plumb the little tab adapter things that adapt the fluid lines from 3/16 IF to #3 or #4 AN.

and the engine needs a carb rebuild as well so for now I will just do a vacuum bleed and she sits until I R&R the carb.

Here is the master I used

Its a BENDIX with a casting # of 2231137

Parts dude says it fits 4 wheel discs, Chevy P Van 1980 thru 1992 or so.

Piston bore is 1.375 FYI








ETA: for anyone doing a rear disc conversion who want the correct Master Cylinder.

Here is a NAPA part # that I recently found.

It can be seen at the NAPA website by putting in the # below at the search box found at the link below. It could also be cross referenced to purchase a Bendix or Wagner MC.

UP 39309

http://www.napaonline.com/NOLPPSE/(S...309_0220760688

Last edited by ParadiseAutoElectric; 01-02-2009 at 05:30 PM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-05-2006, 08:55 PM   #4 (permalink)
Rock God
 
nvrenuf's Avatar
 
Join Date: Mar 2002
Member # 10903
Location: Mobile, Alabama
Posts: 1,649
Eggggselant info! THANKS!!
__________________
John

'91 K5 454, 4spd, Doubler, J76/70HD, 5.86's & 43's
Build Pics & Build Thread


happy..happy..happy....
nvrenuf is offline   Reply With Quote
Old 12-06-2006, 06:45 PM   #5 (permalink)
Registered User
 
Join Date: Nov 2001
Member # 8065
Location: Des Moines, Iowa
Posts: 781
Very nice! Good to see people trying "new" things....
__________________
88 Wrangler, TBI Chevy, dana 60HP/14, 5.13's, 42TSL's on Walker's wheels
BlueJeep is offline   Reply With Quote
Old 12-06-2006, 07:39 PM   #6 (permalink)
Registered User
 
Join Date: Sep 2000
Member # 1792
Location: Parachute,CO
Posts: 2,476
How much do the spacers weigh?Part of the reason to go disks on these is to save weight.How much do you think the disk setup weighs?IE hubs,rotors,calipers,spacers, and caliper brackets.Also what studs did you use?
__________________
CJJuggy.FI406/465/205/D60/14bolt FF on 39.5 Swampers.Kids 70Jeepster fullwidth on 34/9.50 swampers.
Cheepin is offline   Reply With Quote
Old 12-06-2006, 07:49 PM   #7 (permalink)
Registered User
 
Join Date: Jul 2003
Member # 21211
Location: Ellensburg WA
Posts: 224
Quote:
Originally Posted by Cheepin
How much do the spacers weigh?Part of the reason to go disks on these is to save weight.How much do you think the disk setup weighs?IE hubs,rotors,calipers,spacers, and caliper brackets.Also what studs did you use?
Unless your building a comp buggy, who cares about 80lbs. If you were concerned about weight, you wouldn't use a 14bff
__________________
buggy with 404's 5.0 HO and a 4-speed

[quote="Poohbair"]...because I am white trash I think I actually did say "fuck... look at that..."[/quote]
white-rhyno is offline   Reply With Quote
Old 12-07-2006, 10:23 AM   #8 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
I wasn't concerned about the weight as its not mud bogger or rock crawler just a tow vehicle with the desire to have better brakes in the rear and mainly just wanted to see if I could do it it was an experiment.

I wasn't content with the 3/4 Ton kit I felt that kit had too many problems like the stud gap and rotor purchase or place to sit ect. Also since GM used the 1 ton caliper in the rear of the 92-02 GM 1 ton trucks I figured it should work great in my 1985 1 ton Chevy truck. The axle in the 92-02 GM truck wasn't a 14 bolt and it used drum within the rotor type of E Brake.

The studs I used were the 3988538 GM WHEEL STUDS as shown in the first post in this thread. In fact most of the parts that I used are in that post.

The steel pieces (top pic first post) 7"x 1 3/4" weighed about 20 lbs each were cut from a 7 inch bar of 4140 chrome moly steel.

After I removed all the material that wasn't required they weighed in at 10 lbs.

the weight of the Hub, Rotor, Studs, Concentric ring, caliper bracket and caliper. would be very close to the D60 Front components. The only thing that would be slightly different would be the HUB as the D60 front hub has the internal splined area that I think would weigh more than the 14 Bolt hub.

The rotor is just about the same as the D60 SRW rotor the only difference is the stud hole ID. That was one of the main reasons I built this conversion.

As the D60 Rotor has a stud hole ID of .650 the rotor I used has a stud hole ID of .590 and I drilled it out to 39/64 or .6094 since the stud knurl is .622 that gave just about the perfect press into the rotor.

Last edited by ParadiseAutoElectric; 12-09-2006 at 09:18 PM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-07-2006, 08:25 PM   #9 (permalink)
Registered User
 
Join Date: Sep 2000
Member # 1792
Location: Parachute,CO
Posts: 2,476
Quote:
Originally Posted by white-rhyno
Unless your building a comp buggy, who cares about 80lbs. If you were concerned about weight, you wouldn't use a 14bff
I am always concerned with weight.I like to keep everything light as possible.Helps in keeping from breaking parts.Especially my D44 front.Every little bit adds up.80# here 50# there.Berfore you know it your rig weighs 6000# or better.

PS,I guess I missed the studs in the list.Thanks.Nice job also.
__________________
CJJuggy.FI406/465/205/D60/14bolt FF on 39.5 Swampers.Kids 70Jeepster fullwidth on 34/9.50 swampers.
Cheepin is offline   Reply With Quote
Old 12-09-2006, 11:12 AM   #10 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
How do those calipers stay on the brake brackets??
__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!
Dookey is offline   Reply With Quote
Old 12-09-2006, 11:44 AM   #11 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
The caliper mount design is not like the 3/4 Ton GM pin style calipers.
This caliper and some others like it are a slider design and use the GM parts listed below to complete that function.

Also their identical to the D60 front caliper and caliper mounting bracket.
So looking at a Dana 60 front differential will show you more of how it works.




12338037 CALIPER LOCK BOLT
14023437 SPRING
14023439 KEY



Quote:
Originally Posted by MVdSlUT
How do those calipers stay on the brake brackets??

Last edited by ParadiseAutoElectric; 12-09-2006 at 06:42 PM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-09-2006, 11:50 AM   #12 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
I am trying to assemble my brakes on my Chevy 60 and my brakes look just like yours pictured above. I only have the calipers and brake brackets so those parts numbers are exactly what I needed. Do you have any pictures of the completed assembly so I know what to work towards??

Thanks for the numbers
__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!

Last edited by Dookey; 12-09-2006 at 11:50 AM.
Dookey is offline   Reply With Quote
Old 12-09-2006, 12:07 PM   #13 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
Is your setup a D60 front or rear axle ? If it is a rear differential are you converting to disc ?

At the moment this is the best pic if the whole thing all bolted up. the only thing Ive done since this pic was taken was the Caliper to hard line plumbing.
That was done with -4AN Aeroquip stainless Teflon hose with adapters from the IF (inverted flare) hard line to the hose and caliper adapter to -4AN male flare.















Quote:
Originally Posted by MVdSlUT
I am trying to assemble my brakes on my Chevy 60 and my brakes look just like yours pictured above. I only have the calipers and brake brackets so those parts numbers are exactly what I needed. Do you have any pictures of the completed assembly so I know what to work towards??

Thanks for the numbers

Last edited by ParadiseAutoElectric; 07-14-2007 at 10:29 PM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-09-2006, 12:45 PM   #14 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
Mine is a 60 front with those same calipers and brackets. I am building it from scratch so I have no idea how it all goes together.
__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!

Last edited by Dookey; 12-09-2006 at 12:47 PM.
Dookey is offline   Reply With Quote
Old 12-09-2006, 12:51 PM   #15 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
Ok what do you have to start with ?

does you axle have knuckles ? Spindles ? Have a pic ?



Quote:
Originally Posted by MVdSlUT
Mine is a 60 front with those same calipers and brackets. I am building it from scratch so I have no idea how it all goes together.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-09-2006, 02:04 PM   #16 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
I have all the parts except those few brake parts. The tech section gave specifics on everything except the one ton brake setup. I picked up a kit from auto zone that looks like this. I can't figure out the orientation of these parts.

__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!
Dookey is offline   Reply With Quote
Old 12-09-2006, 06:13 PM   #17 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
OK this is easy well at least all but the spring clip that is I never had that on my front axle so i never used it on the rear.

Once the caliper bracket is in place and with a D60 front axle it can only go one way (they are marked with a R and L) they have a 6 bolt circle pattern and 2 of the bolt holes (the ones closest to where the caliper mounts) are farther apart than the rest.

With the rotor already in place and the pads the outside one on the caliper and the inside one sitting on the rotor and in the place where the bracket holds it. The caliper is angled into place top first and then the KEY (in pic RED line on the top) and the spring (RED line drawn around it) goes in on top of the key with the rounded side toward the bracket. then this assmb gets pounded in to the gap between the caliper and bracket.

It only goes in 1 way and you have to match the caliper brackets up with the calipers the calipers arent interchangable there is a Left and a Right.

you can tell if you have 2 rights or 2 lefts as the hydraulic line that goes in should both point in the same direction when their mounted as does the bleeder screw.

Also the small screws lock in the key and spring and are color coded blue in the pic but thats easy to understand.

Make sure you have the correct lock bolts for your caliper bracket I have newer brackets SO I think they are metric I ran a tap into them to clean up the threads but be sure what thread (INCH OR METRIC) they are before you do this.

Hope this helps.







Quote:
Originally Posted by MVdSlUT
I have all the parts except those few brake parts. The tech section gave specifics on everything except the one ton brake setup. I picked up a kit from auto zone that looks like this. I can't figure out the orientation of these parts.

Last edited by ParadiseAutoElectric; 06-25-2007 at 02:18 PM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-09-2006, 08:40 PM   #18 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
I guess I will have to sit down with the caliper and bracket to figure it out. Is what I have pictured just for one side or is it enough hardware for both sides?
__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!
Dookey is offline   Reply With Quote
Old 12-09-2006, 09:17 PM   #19 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
What you have in the pics is for both sides each side takes a 1 KEY, 1 SPRING, 1 LOCK-BOLT.

just keep in mind that when mocking up the parts the caliper bracket holds the inboard pad the caliper only holds the outboard pad.

It will be a lot easier to mock up once the bracket and rotor is on the axle as you wont have to hold the caliper bracket and the caliper and at the same time try to pound the key and spring in between the caliper and caliper bracket.

Ill have a look at my Camera and try to find some better pics that show the caliper being installed on the bracket.


Quote:
Originally Posted by MVdSlUT
I guess I will have to sit down with the caliper and bracket to figure it out. Is what I have pictured just for one side or is it enough hardware for both sides?
ParadiseAutoElectric is offline   Reply With Quote
Old 12-09-2006, 10:05 PM   #20 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
That makes perfect sense to me now. I really appreciate your help. I will post up some pics once I get everything put together. Are you running the same brakes up front as what's on your 14 bolt? I am running 3/4 ton front chevy brakes on my 14 bolt.
__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!
Dookey is offline   Reply With Quote
Old 12-10-2006, 07:19 AM   #21 (permalink)
Registered User
 
Join Date: Oct 2002
Member # 14584
Location: The New and improved Mexico
Posts: 473
There is a picture in Billavista's tech section. There is also a CUCV manual in there somewhere. I printed out some pages from it when I did mine.
__________________
Yes my truck is environmentally friendly.
It lets most of the environment in the truck with you!
6869704x4 is offline   Reply With Quote
Old 12-10-2006, 07:42 AM   #22 (permalink)
GM AT TWF
 
Dookey's Avatar
 
Join Date: Oct 2003
Member # 23680
Location: Wichita, KS
Posts: 8,634
Blog Entries: 1
I have looked thoroughly through most of the tech sections and only saw the cross pin style brakes. I will look through the CUCV manual and see what's up
__________________
ANDY<--- ME!
TrailWorthyFab.com<--- THE BEST DOUBLE BEAD LOCKS!
Project: Dookey's revenge<--- My Junk!
OFF ROAD GEAR<--COOL SWAG!
Dookey is offline   Reply With Quote
Old 12-10-2006, 08:48 AM   #23 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
Of all the CUCV (Chevy's) The M series (Not 880 dodge) like M1008, M1028(My truck) M1031, use this style D60 axle and brake caliper design.

The only CUCV that does not use this design is the M1009 Blazer The following URL has info on the CUCV series.

http://www.tpub.com/content/trucks1....9-34/index.htm


Quote:
Originally Posted by MVdSlUT
I have looked thoroughly through most of the tech sections and only saw the cross pin style brakes. I will look through the CUCV manual and see what's up

Last edited by ParadiseAutoElectric; 12-10-2006 at 08:51 AM.
ParadiseAutoElectric is offline   Reply With Quote
Old 12-12-2006, 07:40 PM   #24 (permalink)
Registered User
 
Join Date: Mar 2006
Member # 69633
Posts: 194
MVdSlUT

Here is a look at a caliper installed and since the caliper is a silver color and the bracket is black you can see it a bit better than on mine.



ParadiseAutoElectric is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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



All times are GMT -7. The time now is 12:21 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 ©2011, Crawlability, Inc.