Dana 60 front axle with 3/4 ton brakes

[MetalMulishaMarcus]

I think if you look hard enough you'll see there are calipers that'll bolt up to 1/2 or 3/4 ton 4x4s that had slightly different piston sizes..
They may use the same pad and mounting bolts patterns,but they are different..

I had a customer who bought two rebuilt calipers and new hoses,and immediately had a "pulling to one side when I hit the brakes" issue..

It took a lot of investigating before he finally decided to blame the calipers--we measured the pistons and one was about 3/16" larger..
I got another caliper off the shelf and found it had the same sized piston as the one with the larger piston,he swapped the matching pair on and no more pulling issues..
The catalogs listed one part # for several years on half tons,but somewhere in the late 70's they added a 3/4 ton caliper with the larger pistons to the listings....the guys truck was a frankenstein made of spare parts from several donors ,so it was always "fun" to find him the right parts whenever he came in to buy something..

It's good to know, I'm gonna have to check to see exactly what I have on the rear of my truck then. I'm sure they are 1/2 ton calipers but not sure anymore now.

 

[Richcz28]

I just wanted the same caliper for ease of replacement and because of my own personal neurosis.

As diesel said. There is a part number that will get you a slightly oversized piston. I don’t know what years it was run.

My front calipers are whatever came stock on an M1009. There are variations in the casting where the line bolts in with the banjo bolts. This affects what lines you can use.

I’m literally in Rausch creek right now. You can check my build for more info. It’s on like page 66. It should be linked when you click into my profile.

 

[MetalMulishaMarcus]

Yes D60 front and 14 bolt rear. The D60 has the stock big brakes and the 14 volt has 1/2 brakes from my old D44 front.
I change the stock prop valve for a disk/disk one and I change the master/booster to a k30 one with a 5.7 in it (not sure if that is a 1 ton or not)

The pedal is good, I just get a spongy pedal at random times and it scares me a little. I know everything is bleed and the system is good cause I can slam on my brakes and stop on a dime..but I just feel my system isn't up to par for the bigger brakes as well as being disk on all 4 corners.

So to update everyone, I think I figured out why I'm getting a random soft pedal and I think it's because the disk/disk distribution block I put in is leaking. I went to move my truck the other day for street sweeping and realized there was a small puddle under where the distribution block is mounted underneath the truck. I looked to see if something else was leaking and there was no signs. So I believe I bough a bad part. I think because its leaking, there might be air in the lines. It doesn't leak much.
Does this sound like something that could be giving me a random soft pedal?

 

[imiceman44]

So to update everyone, I think I figured out why I'm getting a random soft pedal and I think it's because the disk/disk distribution block I put in is leaking. I went to move my truck the other day for street sweeping and realized there was a small puddle under where the distribution block is mounted underneath the truck. I looked to see if something else was leaking and there was no signs. So I believe I bough a bad part. I think because its leaking, there might be air in the lines. It doesn't leak much.
Does this sound like something that could be giving me a random soft pedal?

Definitely.
I had the same problem with my Jetta and once I replaced it everything was perfect.
It's the worst to track down because sometimes it doesn't leak out it just sucks air and sometimes it leaks a little bit, not enough to see easily.
Hope you get a good pedal feel now.
I am starting to have a problem with my s15 Jimmy I think my MC is going out.
No leaks but sometimes with hard braking the pedal goes down with steps.

 

[MetalMulishaMarcus]

Definitely.
I had the same problem with my Jetta and once I replaced it everything was perfect.
It's the worst to track down because sometimes it doesn't leak out it just sucks air and sometimes it leaks a little bit, not enough to see easily.
Hope you get a good pedal feel now.
I am starting to have a problem with my s15 Jimmy I think my MC is going out.
No leaks but sometimes with hard braking the pedal goes down with steps.

I'm gonna replace mine as soon as I can and I'll keep you updated

 

[MetalMulishaMarcus]

Use tmr brackets. They actually put the spindle in the right spot. Lugnut does not.

And it's a great pedal and braking performance for what you're doing. Keep the brake system you have all together and use the small rotor on the 60.

We have that now on this 79 and it works excellent.

*If your current brake system is functioning correctly .

Bringing this thread back to life.
What do you mean tmr brackets put the spindle in the right spot? I've looked at other brackets at well as lugnut 4x4's new kit and all the brackets seem the same.

 

[obijuank5]

Lugnut used to not be right. Basically the spindle needs to be piloted into the knuckle, then brake bracket. I told lugnut he was a dope for doing it that way and it changed.

 

[MetalMulishaMarcus]

Lugnut used to not be right. Basically the spindle needs to be piloted into the knuckle, then brake bracket. I told lugnut he was a dope for doing it that way and it changed.

Is the new kit correct then?

 

[obijuank5]

Judging by the pics on his website, yes.

 

[MetalMulishaMarcus]

Judging by the pics on his website, yes.

Thank you