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Type 3 Rear drum brakes parts interchangability question
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adriaan pienaar
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PostPosted: Thu Jan 08, 2009 1:17 pm    Post subject: Type 3 Rear drum brakes parts interchangability question Reply with quote

Hi Guys, I hope you can help me with a few answers. I went IRS on my buggy project, with Type 3 drum brakes at the back. Would the connecting link plate (arrowed in the pic) of a Beetle work on a Type 3, are they the same?

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Would Beetle rear brake cylinders (with the bleeding nipple below the brake line connector) work on Type 3 rear brakes, and would one be able to fully bleed the brakes? Thanks!
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flyinglow94
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PostPosted: Thu Jan 08, 2009 3:05 pm    Post subject: Reply with quote

I pulled this from my other post. 64-65 Wide 5 Type 3 rear drums use the same brake shoes as the 66-74 type 3's and those shoes are the same as the 73 and up super beetle front shoes. You can also use the super beetle front wheel cylinders for type 3 rear replacements. But I would think the plate would be type 3 specific because the drums are a larger diameter than the bug.
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raygreenwood
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PostPosted: Fri Jan 09, 2009 8:01 am    Post subject: Reply with quote

It fits type 4 (411 and 412)as well. I have used in a pinch ones slightly modified from a late bus....about 1976...sorry I can't remember exactly which one. Ray
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adriaan pienaar
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PostPosted: Sat Feb 14, 2009 11:33 pm    Post subject: Reply with quote

I have done a mock-up of the Type 3 rear brake setup, using the connecting link of a Type 1, it seems to fit perfectly?


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Dunebubby
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PostPosted: Fri Jun 26, 2009 11:36 pm    Post subject: Reply with quote

The only difference in the type 3 rear brakes is the width of the Brake shoes and brake drum. 30mm for the beetle versus 45mm for the type 3.In other words the type 3 rear brakes are half a brake pad wider than the bug brakes.
All of the bug brake hardware should work on the type 3 rear brakes except the (brake shoe),hold down pins. The pins that hold the brake pads down to the brake backing plate,(those need to be longer to accomodate the wider brake shoes).. The diameter of the drum is no larger. The beetle hardware will work great.
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Chris Vellat
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PostPosted: Sat Jun 27, 2009 12:06 am    Post subject: Reply with quote

Dunebubby wrote:
The only difference in the type 3 rear brakes is the width of the Brake shoes and brake drum.


The width and radius are different, the brake drum is of course different, the wheel cylinders are different, the two smaller brake shoe retaining springs(at the adjuster housing), as well as the pins. EDIT: duh, I forgot backing plates

Dunebubby wrote:
30mm for the beetle versus 45mm for the type 3.In other words the type 3 rear brakes are half a brake pad wider than the bug brakes.


30mm is early Beetle/Ghia - `68+ is 40mm including Beetle/Ghias/Things

Dunebubby wrote:

All of the bug brake hardware should work on the type 3 rear brakes except the (brake shoe),hold down pins. The pins that hold the brake pads down to the brake backing plate,(those need to be longer to accomodate the wider brake shoes)..


Actually 'normal' Beetle/Ghia/Thing IRS pins will work fine.

Dunebubby wrote:
The diameter of the drum is no larger. The beetle hardware will work great.


The diameter is quite larger. From 9.112" (legal limit) to 9.782(new)-9.822" (legal limit).

Supers fronts use 23.8mm wheel cylinders, while your typical Type III wheel cylinder is 22.2 - I think there's a catch on the very early Type III's.
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RichardinNZ
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PostPosted: Tue Apr 14, 2015 3:57 pm    Post subject: Brake Springs Reply with quote

Does anyone know whether the lower (short) brake springs are similar to any other VW springs? I can't get the correct ones here and the shipping cost of a spring kit from the USA is disproportionate to the cost of the springs (about $25)! I can easily get most Type 1 and Type 2 springs, so if any are similar that would help a lot.

Thanks
Richard
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toddgsanford
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PostPosted: Tue Apr 28, 2015 8:04 pm    Post subject: Reply with quote

I have installed type three brakes on several type ones and this part is the same and works just fine.
Also the I of for rear wheel cylinders being same as super beetle front is correct also. I did find out that the rear cylinders for a square back have a wider piston than the fast back or notchback version. Old school vw parts guy said they used to use those in super beetles that customers complained of poor front braking.
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