MGB rear disc brakes

[MGBV8]

I hadn't thought about threading the aluminum.  I am sure y'all would say to use fine thread.

[mgb260]

Or steel thread inserts. The one who used Charles design probably used the thicker dimension and milled down to the thinner. Anything under 3/8" I'd use steel if 3/8" or thicker aluminum would be fine.

[BlownMGB-V8]

For lightest weight nutserts would be another option.

Jim

[MG four six eight]

Yeah, I forgot to mention that I also installed heli-coils for the caliper mounted bolts.
Bill

[Scott Costanzo]

I used a version of Charlie's design on my rear axle. Works great! Just an FYI, the caliper brackets on the Honda Civic calipers I used are threaded so you don't need thread's in the fabricated brackets, just holes.

[MGBV8]

Thanks for that info, Scott!

[geezer]

I just saw the comments about threading the brackets.  None are threaded and I used nuts and bolts.  The caliper factory bracket is threaded so that bolt goes through a drilled hole into the factory caliper bracket..  

FWIW I did weld the 2 brackets together, along with using the bolts and nuts, just for my satisfaction.

[geezer]

It has been awhile since I have posted here.  Just thought I would update this thread.  Tim Nagy is now making the brackets for the rear disc conversion.  If interested, contact him directly.

Rear brackets available here

morspeedperformance@gmail.com

http://morspeedperformance.tgnagy.com/rearDisk.cfm

[MGBV8]

Good to know.  Thanks, Charles!  Tim, as well.  

[BlownMGB-V8]

There is one thing that we should have addressed on page one but I think we were too lost in the nuts and bolts to think about, and that's the whole question of whether or not it's a good idea to use disc brakes at the rear in the first place. There are valid arguments both ways of course but I think it's worth discussing.

One view is that the drum brakes are perfectly fine and don't need to be messed with. I think that's valid. Here is something that isn't usually considered: Drum brakes are self actuating. This is particularly important when they are used as a parking brake because it means less pull is required at the handbrake lever to get the same holding power. With discs you need every possible mechanical advantage to achieve the same thing and any single detail can derail the effort.

Jim