05+ superduty disc brakes

[TBItoy]

I am working on this today. My problem is finding a 8x170 rotor that will work with the standard 3/4 ton caliper. Many are too thick for the caliper to fit over and others are too small and the caliper hits the knuckle. I will figure out something.

I wonder what it would cost to get a run of brake rotors made to your specs, if all you needed was was a 8x170 bolt pattern put in an existing rotor blank.

 

[redneckengineered]

I am working on this today. My problem is finding a 8x170 rotor that will work with the standard 3/4 ton caliper. Many are too thick for the caliper to fit over and others are too small and the caliper hits the knuckle. I will figure out something.

This just occurred to me but don't limit yourself to the 8x170. I redrilled mine to 8x6.5 and a lot of others do this too so they don't have to buy new wheels. I think you'll need to offer both options eventually but if I'm being selfish here I'm most interested in the 8x6.5.

edit: Hell if you found the perfect 8x6.5 rotor that works you could always have a machine shop redrill a batch to 8x170 and mark them up slightly.

 

[TBItoy]

The issue is that most rotors (regardless of bolt pattern) that are large enough to fit the 05+ bearings/knuckles are 1.5" thick, rather than 1.25" needed for the ol 3/4t caliper.

 

[redneckengineered]

Might be worth working a deal with Branik depending on what the cost of these are. From Facebook...

New BRANIK hats and rotors fit 2005 up F350-450 unit bearings, 8 on 170mm or 6.5" as well as 99-04 ubearing, and old school king pin d60's

 

[wizzo]

I am working on this today. My problem is finding a 8x170 rotor that will work with the standard 3/4 ton caliper. Many are too thick for the caliper to fit over and others are too small and the caliper hits the knuckle. I will figure out something.

Awesome!

This just occurred to me but don't limit yourself to the 8x170. I redrilled mine to 8x6.5 and a lot of others do this too so they don't have to buy new wheels. I think you'll need to offer both options eventually but if I'm being selfish here I'm most interested in the 8x6.5.

I mentioned this to him in our email exchanges. I think he will be best served offering both 8x170 and 8x6.5. I was hoping for an 8x170 option b/c I'm planning on unit bearings all around and it would keep me from re-drilling. Not that it's a huge deal, just one less thing.

Might be worth working a deal with Branik depending on what the cost of these are. From Facebook...

New BRANIK hats and rotors fit 2005 up F350-450 unit bearings, 8 on 170mm or 6.5" as well as 99-04 ubearing, and old school king pin d60's

Those are sweet BUT then we're back to aftermarket calipers, etc. Just trying to stick with parts store stuff on this one if possible.

 

[gubni]

For now I am going to try some smaller dual piston calipers.

 

[Beerj]

The issue is that most rotors (regardless of bolt pattern) that are large enough to fit the 05+ bearings/knuckles are 1.5" thick, rather than 1.25" needed for the ol 3/4t caliper.

Probably not worth the hassle but I bet there's enough meat on them to take an 1/8th off both sides.

 

[TBItoy]

Re: Re: 05+ superduty disc brakes

Probably not worth the hassle but I bet there's enough meat on them to take an 1/8th off both sides.

I'd say yes, especially for a trail rig. (And if you started with good "premium" rotors)

 

[gubni]

I think I have something figured out. I am going to work on this again tomorrow. I plan to use a smaller dual piston caliper.

 

[wizzo]

I think I have something figured out. I am going to work on this again tomorrow. I plan to use a smaller dual piston caliper.

AWESOME! can't wait to see what you come up with!

 

[gubni]

I have a working sample. I sent it out for bid to see what we can get done on the bracket. It's not going to be a cheap solution, but it will be a great product.

 

[wizzo]

Anything you can share at this point?

 

[gubni]

The rotors and calipers are off a 2000 super duty rear. There is no way to make the chevy 3/4 ton work. This caliper is a much smaller caliper. The bracket is 3/4" thick and requires some precise machining.

 

[paradisepwoffrd]

Re: Re: 05+ superduty disc brakes

The rotors and calipers are off a 2000 super duty rear. There is no way to make the chevy 3/4 ton work. This caliper is a much smaller caliper. The bracket is 3/4" thick and requires some precise machining.

does it mount of the factory caliper ears or somewhere else?

Anyway to use 2 pieces of 3/8 or a spacer instead that thick plate?

 

[gubni]

Yes it mounts to the factory ears. 3/8 plate plus a spacer would work, but I try not to use spacers. I should have the first sample here soon. It's been made and on the way to me.

 

[redneckengineered]

Yes it mounts to the factory ears. 3/8 plate plus a spacer would work, but I try not to use spacers. I should have the first sample here soon. It's been made and on the way to me.

:woot:

 

[Beerj]

The rotors and calipers are off a 2000 super duty rear. There is no way to make the chevy 3/4 ton work. This caliper is a much smaller caliper. The bracket is 3/4" thick and requires some precise machining.

What year did they switch to the metric lug pattern? Any chance those rotors are already 8x6.5? I'd be willing to bet that most people running the 05+ stuff converted away from the goofy metric dimensions.

 

[gubni]

What year did they switch to the metric lug pattern? Any chance those rotors are already 8x6.5? I'd be willing to bet that most people running the 05+ stuff converted away from the goofy metric dimensions.

97 was the last year for the standard lug pattern. I figured since the hubs are metric I would use a metric rotor. If you are going to redrill to standard lug pattern it wouldn't be that much more to redrill to rotor also.

 

[Beerj]

97 was the last year for the standard lug pattern. I figured since the hubs are metric I would use a metric rotor. If you are going to redrill to standard lug pattern it wouldn't be that much more to redrill to rotor also.

Gotcha. I don't know what the rotors are made of but I had a hell of a time trying to drill them. Ended up just elongating the original holes with the plasma. :****: I figured there would be another option available by the time my booty fab gave me any trouble.

 

[waggener1]

gubni, any news or updates?

 

[gubni]

I got the sample back only to find out that my wheel bearing was bad on the axle I was taking measurements from so it was off by 1/8th. That is enough to make it not work so I requested another sample.

 

[waggener1]

At least you identified the problem in the prototype phase! Thanks for the update; I'll stay tuned in.

 

[wizzo]

Anything new?

 

[gubni]

I have gotten a few prototypes, but still fighting with it.

 

[redneckengineered]

I have gotten a few prototypes, but still fighting with it.

You got a buyer right here.

 

[waggener1]

You got a buyer right here.

x2

I picked up a rear rotor for a 2000 F250 the other day for test fit. I can see now that the center hole diameter will have to be increased about .125" to fit over the hub and fully seat. Have you tracked down another rotor application that doesn't require machining?

 

[gubni]

I am using a spacer behind that rotor.

 

[redneckengineered]

I have gotten a few prototypes, but still fighting with it.

Do you think your caliper bracket would work with these? I've been eyeballing them as an option.

 

[gubni]

No, that rotor is a piece of cut steel and not a real rotor. My kit uses real rotors you can get at most parts stores.

 

[gubni]

I have a functional prototype on the 05+ super duty front kit. It will take some time to get production. I won't know cost for awhile, but it's not cheap and uses a small two piston caliper and slide on rotor. The kit comes with a ring to redrill to 8x6.5 lug pattern, but the rotor is 8x170