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Disc brake conversion.

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Disc brake conversion.

wrench1956 wrench1956
New User | Posts: 1 | Joined: 07/08
Posted: 07/29/08
04:34 PM

Im looking to convert a 4wheel drum non power assist brake system to a power assist front disc brake system on a 69 chevy 3/4 ton truck. Any ideas?  

curtisfox curtisfox
User | Posts: 158 | Joined: 05/08
Posted: 07/29/08
07:54 PM

Get a 1/2 ton doner 73 -87. Change the hole crossmember they bolt right in except for a couple holes you can drill them out. you can use the power steering, master cylinder with boster, and the rear end.CPP,Brothers, or Early Classic Enterprisses has the spring perches the put the rear in.Get 1/2 ton springs for the rear. Make sure you use the front sway bar,you will wish you had if you don't.  

cgeorge cgeorge
New User | Posts: 2 | Joined: 08/08
Posted: 08/17/08
08:20 AM

i have a 1965 chevy 1 ton panel truck with drum brakes i am looking to convert to power disc and keep the 8 lug pattern any help would be appreciated  

mpayne mpayne
Guru | Posts: 1157 | Joined: 11/07
Posted: 08/20/08
10:02 AM

Disc brakes must be very popular topic on the forums, I would think Brothers Trucks or LMC Trucks would have a kit available.  

New User | Posts: 7 | Joined: 10/08
Posted: 10/20/08
04:32 PM

i agree with your decision i did the same to my 69 gmc and i tell you what it was worth it, and  i would agree with curtisfox... find a doner best choice  

oilzumguy74 oilzumguy74
New User | Posts: 1 | Joined: 01/11
Posted: 01/19/11
11:00 PM

hi i am new here and i have a 1970 chevy 1/2 ton truck that i would like to change the front drum brakes to disk brakes what i like to knoe what year of front end will work. now i have a 1974 chevy truck 1/2 with the front end redone on it lastyear will that be a good doaner. 2 i would like to know how to convert the coil springs to leaf springs is this posable and i hope that thes questions are not dum  

CPPMario CPPMario
New User | Posts: 8 | Joined: 11/10
Posted: 01/21/11
06:09 PM

We have an 8-lug conversion kit that work on your truck.  Come with everything minus the lines and booster.

The booster will run you 299.00  
(714) 522-2000 Ext. 126

chevyman80751 chevyman80751
New User | Posts: 36 | Joined: 05/08
Posted: 06/30/12
06:02 AM

So i have the front discs all bolted up and on, and I will mount my booster and master cylinder tonight or tomorrow... My questions is what is the easiest way to plumb it? I would like to use most of the existing brake lines (never had a problem with them) but how do I separate them into two separate systems (front and back) can I plug the hole where it sends it to the back and then connect a new line there?  

waynep71222 waynep71222
User | Posts: 221 | Joined: 05/12
Posted: 06/30/12
12:27 PM

do you have a pre67 system? that is a single system instead of a dual system??/

some people have done it that way...

please be sure to find inverted flair plugs...


they are available in most parts stores if you know who to ask...

you are probably still going to need to make lines from the new master to which ever version of the proportioning block/safety switch you have.. and from there to the front crossover block.. and a new line from the block to the line to the rear....

the 3/16 inverted flair plugs are dorman part number  490-490
490-490   in boxes of 10 behind the counter
490-490.1 in poly bags containing 1. in the drawers behind the counter.

the 1/4" inverted flair plug in poly bags dorman  490-491.1

at autozone and some other parts stores that sell AGS brand.. az has both sometimes

AGS/3/16 in. tube size 3/8 in. - 24 thread inverted flare domestic brass plug for 3/16 in. domestic ports Part Number: BLF-60-C

AGS does not show a 1/4 inch inverted flair plug..  in their catalog..

Edelmann - Inverted Flared Fitting
Solid Plug - 3/16" Tube (3/8-24 Male Thread)
Part # : 120300

Edelmann - Inverted Flared Fitting
Solid Plug - 1/4" Tube (7/16-24 Male Thread)  
Part # : 120400  

chevyman80751 chevyman80751
New User | Posts: 36 | Joined: 05/08
Posted: 07/31/12
08:40 AM

I got my master cylinder and brake booster off of a 91 camaro. BAD IDEA! I had to go from metric bubble fittings to regular fittings, not to mention I ended up having to run all new lines to the front, due to the proportioning valve having two outlets for the front brakes (Left and Right) It the motor had been out this would have been no problem, but it was a pain making brake lines with the motor in place. Note to the wise Buy an older SAE master cylinder LOL  

king.joseph80 king.joseph80
New User | Posts: 2 | Joined: 05/14
Posted: 05/16/14
04:19 AM

I nave a 1960 chevy apache im looking to put disc brakes on the front I guess im wondering if I can use rotors and calipers off a 1991 chevy 1/2 ton van I know I would have to the brackets for the calipers or if theres any other years and chevt models that will match up to it thanks  

king.joseph80 king.joseph80
New User | Posts: 2 | Joined: 05/14
Posted: 05/16/14
04:23 AM

I have a 1960 chevy apache im looking to put disc brakes on the front im wondering if the rotors and calipers off a 1991 chevy 1/2 ton van would work I know I would have to get the brackets to mount the calipers to   or what others years would work for donor thanks