wagoneer axles under a flattie?

there should already be a 10 lb residual valve in the other port since both ports were used for the drum brakes

 

Now you have me confused. What MC are you using? If the MC you are using is from the Wagoneer and of course the axles, then the brake circuits could/should be plumbed as they were in the Wagoneer. If not the Wagoneer MC, then again what is it?

 

Here's a good reference on what should be included in the plumbing.
https://mbmbrakes.com/proper-brake-system-plumbing/

Mike

 

the master cylinder should still have a 10 lb residual valve in the port that im using for the drum brakes in the rear ,originally had drum brakes all the way around...

 

im using my original MC thats mounted on the frame under the floor board ...there are several threads about guys using their original master cylinders and modifying them, thats where i got my info for doing this....one thread is "front disc brake tutorial" on this forum

 

IMHO and my experience, it is highly unlikely that a drum/drum master cylinder can move sufficient volume of brake fluid for disc brake calipers.

 

do you have any info on what MC you used ? what push rod,etc....

 

Im thinking that also the more i keep messing with this....but other guys still say that it will work? im getting frustrated,,,there is a thread "front disc brake tutorial" on this forum, thats got alot of good info, but its not working for me...

 

well i pressure bled the system one more time before giving up and trying to find a different MC,and Success!!!!! guess it had some air in the system, now the brakes work great! thanks for the help guys......love this group

 

Great! I was starting to get concerned. I messed with mine forever (4 discs), before I did the plate and pressure. There was air in the system that I concluded would never have come out without the pressure.

 

thanks for your suggestion

 

Interesting. My ‘59-5 with 4 wheel 1/2 ton GM discs worked just fine with the stock 9” drum brake master cylinder for over 15 years. About 1” to 1 1/2” movement of the brake pedal and could lock up all four wheels if I so chose. It’s all about proper setup.
Tons of people on here have done it with good results. Tons of my customers I sold disc brake conversions have done it with good success (for well over 25 years). The pistons in the calipers move thousandths of an inch during each brake apply vs. fractions of an inch with drum brakes.

 

what business do you have? can you share it on here? and yeah I was getting frustrated not figuring out why my MC wouldnt work, just air in the system, I see that alot of guys said it would work, my Bro in law has a dana 30 with discs in his 65 cj5 and still runs the original 1 reservoir MC .....I told him he should upgrade to a dual reservoir for safety

 

thanks for the good info....i got my brakes working, still had too much air in the system