Rockwell Hub Front Disc Brake kit/idea? SSWaters

SSWaters

SSWaters

Old Member
Joined
Mar 22, 2005
Location
Kannapolis
Feb 10, 2012 Show in original location
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So George G. came over to the house and got me thinking about front disc again, this is my after work brainstorming.

It would be "hub out only".

If you wanted to run a larger outside diameter disc just make the caliper bracket taller accordingly.

Will probably counter sink the spacer to hub mount bolts or use flush heads. Kind'a close to caliper like this but it was my first try. I guess you could weld this but I don't like welding hot roll DOM to cast, even if you're certified to weld iconel underwater on the moon or magnesium on venus.

Would use high strength cap head bolts on the rotor to spacer mount, just didn't have any at work. Would safety wire those also, don't just trust locktite by itself on the rotors.

The rotor you have to grind a hair off each tang to slide it down on the hub (1/16" to 1/8"). Don't pay any attention to my scribbling on it.

The spacer is 7 1/2" OD by 1/2" wall DOM, could not find find 6 3/8" ID Tube at an affordable price for the weekend warrior (found it, just not affordable). Will have to grind out little "moons" in the bottom to clear the stud shoulders.

Since I had to go with 6 1/2" ID I shimmed this hub center with 20 gauge plates, could use 18 or 22 gauge depending on your hub (I had bead blasted this one clean). 16 Gauge is way to tight, had to really beat in and got all jammed up. Would have went if I had ground the hub surface really smooth. Shim all the way around evenly before drilling hubs! Spacer bolts go through shims.


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looks good Scott... would it be possible to make the spacer shorter to just encompass the end flange and bolts for the hub? Im guessing the length is to get the right spacing, since i did not see holes drilled through the wheel flange.

I have ran through a few different ideas, but there isnt something great that doesnt require some machining the hub, that the average person can afford...

Im sure you have seen these two threads:
http://www.pirate4x4.com/forum/showthread.php?t=408046
http://www.pirate4x4.com/forum/showthread.php?t=944694

Tim (Firetoy) was running a similar setup on his last rig, except it was a rotor flange welded on the hub.


Also, with the spacing, I dont think hubs in wheel brakes are possible, unless you build custom hubs or knuckles.

Lastly, are you going to sell these, or were they just for you/George.
 
I've seen those, that first one is for big wheels, we were trying to shoot for the smaller rims. If I had 20" rims I'd do the bus rotors all day long, but had my Iroks on 16.5's when I was running 1 ton stuff, didn't want to and couldn't afford to buy new tires when I went to rockwells 7 years ago. That second one I like but he/we didn't like the metal getting shaved down that close on the hubs and rotor, but it looks great assembled.

The spacer is not tied to the flange, it bolted sideways thru the hub, you can see the holes, 6 total, the rotor is bolted to the end of the spacer.
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Basically this version is a dirt track/racing rotor ($52.99 each at Summit/Jegs/Heintz or wherever). Wilwood Rotor PN 160-2894 & 160-2895 (directional vanes LH & RH).

Wilwood Caliper ($124.99 each at Summit/Jegs, cheaper used at certain places like the old muscle motorsports or Rousch used parts) Wilwood Forged Dynalite PN 120-6814.

Wilwood Polymatrix Pads 7112 Series ($40 to $170, whatever you want to spend on custom compounds).

5" X 10" X 3/8" thick metal cut to shape for caliper mount ($10 to 25) or get Mud Pro to cut them for you.

7 1/2" OD (6 1/2" ID) by 1/2" wall DOM by 3 3/8" wide ($65 delivered from Speedy Metals as of this week)(or shorter if you flipped rotor). (may have to shorten by 1/8" or so depending on how your hub was cast/machined)

18 thru 22 Gauge Shims cut to fit out of sheetmetal ($7 to 12 at Lowes/Little's Hardware/Home Depot).

Drill some holes, tap some others, buy some grade 8 bolts and mount it up.

I'm not selling kits, just throwing the info out there for whomever, if you've built your own rig you can make this setup. No welding, maybe some cutting, just grinding, some tapping, some drilling. Did all this so far with a drill press and a grinder/cutoff.

Again, weekend warrior budget I'm shooting at, if moneys no object there are numerous kits out there and you'd be running 20" wheels anyway. When you mention the machine shop it's not always a good thing, some try to break it off in you.

This is a pic of my old USA6X6 set up (out of business). I'm replacing the cast set up where the studs go thru with a DOM thru bolted spacer. The rotor bolts always back out of the cast alumnium set up and they crack. Plus the alumnium spacer shoulders sits real close on the caliper.
The caliper mount piece is the same, 3/8" thick steel. I'm guessing you could play with spacing either way a hair.

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HHHMMMMMM, now time to work on my rockwell to wide 5 adapter? What you'd say?
 
I'm guessing some linked pics got dumped in the upgrade, will fix when I get to a real computer vs my phone. New smaller font and linking thing I ain't figured out yet!
 
The top 2 pics are apart and together, the 3rd pic shows what it replaces. I swapping my front brakes over after the April. Have alot of work to get out the door and the local High School wants me to bring my Jeep to a Fundraiser/Car Show so not gon'na put it down before then. I will start after the show and post up step by step pics on this thread. The rotor spacing is the same as the USA6X6 adapter, depending on how your hub was machined you may have to shorten the spacer 1/8" or not. Plus, I'll probably switch to counter sunk bolts on the spacer to hub area.
 
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