Has anyone thought of custom machining a brake mouting flange?

[jtdegreenia]

Impressive work on thier part I I'll definitely reach out

 

[Erik the Awful]

My racing buddy who runs a K24 swapped Miata used sendcutsend for a lot of his brackets. Quick, relatively inexpensive, and quality work.

 

[Scooterwrench]

Not sure of the back spacing but it seems one could cut the center out of a 10" backing plate and weld it into an 11" backing plate and use earlier 11" drums. The bolt holes would have to be bored to 14mm(7/16") and I think the center holes would have to be opened up.

 

[GoToGuy]

Who's gonna weld it in? Who's gonna cut the tube square to weld the flange? What about the bearing mount recess?
This isn't just quite as simple as it you think. There is the thought of reinventing the wheel. When established better idea is available.

 

[Caman96]

I completely agree^^^. It’s definitely more complicated than meets the eye. Another possible issue is the new flange. I’m pretty sure @SNCTMPL, pointed out in his build thread, the flange has a “step” machined into it that the backer plate’s axle hole sits on. Yeah, you could incorporate that in your new custom flange, but it’s another consideration. Probably a few more too!

 

[Caman96]

Maybe you could take 11” backer plates, somehow fill existing flange bolt holes(braze/grind?), and then redrill 10” flange bolt pattern.

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Then you would need a perfectly sized/machined ring to sit on 10” axle flange to accept 11” backer axle hole.

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Cause dreaming is free.

 

[jtdegreenia]

Who's gonna weld it in? Who's gonna cut the tube square to weld the flange? What about the bearing mount recess?
This isn't just quite as simple as it you think. There is the thought of reinventing the wheel. When established better idea is available.

I would weld it, and you wouldn't cut the tube...you'd simply cut the welds off the existing bracket and remove.

 

[Captainfab]

I currently fabricate a backing plate flange for the '63 truck 12 bolt. Fabricating a backing plate flange for the 9.5 14 bolt with the 11" brakes would be mainly a dimensional change plus threading the bolt holes. It really would not be difficult for me to fabricate if there is indeed an interest.

Backing Plate Flange

This pair of backing plate flanges are designed to be used on the '63 truck 12 bolt which came from the factory with pressed on drum brake backing plates. They are typically used when upgrading to rear disc brakes. These flanges have the correct diameter and depth backing plate register machine...

customfab-cda.com

 

[Orpedcrow]

Fabricating a backing plate flange for the 9.5 14 bolt with the 11" brakes would be mainly a dimensional change plus threading the bolt holes.

As in, an adapter to mount the 11” drum brakes from the 9.5” 14 bolt to, the the 8.5” 10 bolt axle housing that’s in a lot of c1500 gmt400 trucks?

Yes, I do believe there’s interest.

 

[Caman96]

As in, an adapter to mount the 11” drum brakes from the 9.5” 14 bolt to, the the 8.5” 10 bolt axle housing that’s in a lot of c1500 gmt400 trucks?

Yes, I do believe there’s interest.

…and or the 8.5 in a K1500. Oh yeah, there’s interest.