Trailer Disk Brakes?

[M4wdFab]

you guys were right about stud length,  i underestamated the thickness of the 19.5 steel wheels.  i bolted one up and there is really only 5/8" of threads at best sticking out.  might have been fine?

i needed to source 4 studs that had issues any way, and just by chance amazon had a listing for 10 packs for 16$ so i ordered 50 of them.  if you havent checked out stud prices they can be shocking!


all in all if i would have known it would probably be easier to just order 6 idler hubs that have longer studs, newer bearings, new seals at 67$ each, but what fun would that be   

[M4wdFab]

studs, brake fittings, line, clamps, hub seals ordered.  RA order of calipers/rotors/pads/brake hoses also on way.


should just be left a pump to order and ill have everything.

started on cad work for bracket today. 
had to do some 7th grad trig to math out the weird bolt pattern (not published anywhere i could find)

[mr.mindless]

yeah that bolt pattern is WEIRD.
I had to drill some things to re-clock mine where needed IIRC because I'm at a very nonstandard rotation to put caliper at 6 o'clock for frame + leaf spring clearance

[M4wdFab]

65 degrees on 3.864" is what I came up with.  That involved trig and isosceles triangle math lol.  I could add two more holes to make it clockable a bit but I think I'll just leave it with the caliper either directly Infront of or behind the axle.  this is what I came up with for first shot, I'm sure it will need some tweaking once I have a caliper loose in my hand. 

and ill see if i need a bend, spacers or something else with pad to rotor spacing

[M4wdFab]

best i could tell from matts buggy vertical like that is best for the bleeders also. 

[M4wdFab]

Dorman 610-541 Rear 9/16-18 Serrated Wheel Stud - 0.682 In. Knurl, 2.9 In.

calipers came today.  didnt get into the shop to burn a bracket out yet. 

[M4wdFab]

first shot, size holes on drill press to 25/64" for 3/8" 5 bolt mounting pattern and 7/16x20 thread taps for caliper

bolted on and caliper spacing, clearance, and pad wear movement couldnt be more perfect with a flat bracket. 

some times you eyeball and get lucky!

ready to print out of 3/8"

[M4wdFab]

rotors im using are 1.14" nominal thickness.  the calipers im using are made for a 1.295" nominal thickness.  may need a pad spacer, or it will be fine. 

visually saw this today during mock up and i think it will be fine, just going to leave it. 

still cant believe it just works alignment wise with the rotor i randomly picked ha

[mr.mindless]

Lucky!
Immediate thought on the thickness (the third time I read it) is that when pads wear out, it might be more likely to jam or eject the piston before getting to metal on metal

[M4wdFab]

brackets burned out of 3/8s yesterday on Wolfies table

will prep and finish them after jeeps are done this week but look good. 

[M4wdFab]

holes cleaned up on drill press, threads taped 7/16 x 24, painted

got 3 hubs with rotors / calipers / pads final assembly on trailer done today in between waiting on parts. 

fits awesome and all happy. 

[etk300ex]

Nice!

[dubt]

It's so awesome you can fab like this . Great job!

Sent from my SM-S928U using Tapatalk

[M4wdFab]

took advantage of sun today, all 6 hubs assembled with brakes and plumbing done to inside pump location.

1600psi pump ordered. 


should be left mount pump, run some wire, bleed.

[mr.mindless]

badass. gonna put you through the windshield like you've never stopped before!