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70's Mazda 13B Cosmo, bad brakes, no parts support, now what?

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Old 02-17-15, 06:10 AM
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70's Mazda 13B Cosmo, bad brakes, no parts support, now what?
70's Mazda 13B Cosmo, bad brakes, no parts support.

Looking for any and all options, companies that can overhaul, affordable retro fit success stories? I am all ears.

Otherwise this car is great, even has working AC, hate to see something like this take it down.
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Old 02-17-15, 07:34 AM
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Have you tried www.Rockauto.com I just checked and there are brake pads, calipers and wheel bearings.
Last edited by spokanerxdude; 02-17-15 at 07:42 AM. Reason: ad info
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Old 02-17-15, 07:53 AM
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As fare as rear brakes and drums, someone on here should know if you can use Rx4 shoes and drums, just checked and rockauto has them.
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Old 02-17-15, 06:55 PM
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Thanks for that link, these guys are great such a relief!

Anyone know if any other Mazda's share a similar rear drum?
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Old 02-17-15, 07:14 PM
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Cosmo has rear disc... no drums... or atleast mine did... it is not 4x110 either
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Old 02-17-15, 07:21 PM
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Check out Adams rotors. Will make Rotors to order. adam's rotors | custom brake rotors, made-to-order
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Old 02-18-15, 04:26 PM
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Originally Posted by 73rx313b
Cosmo has rear disc... no drums... or atleast mine did... it is not 4x110 either
Yes, front and rear disk brakes, just a guess, but looks like 4x120 eyeballing it.

Thanks for the link on the rotors as well.
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Old 02-22-15, 10:11 PM
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Was able to find everything accept the rear caliper over haul kit and drum e-brake parts inside the rotor. Any recommendations on a company to ship them off to for restoration?
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Old 03-25-15, 06:50 PM
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Pads from rockauto fit, but the caliper overhaul kit did not.

Pulled apart the front caliper and took a bunch of measurements, someone at the parts store took the time to dig through all the the stock to find something close. Turns out the Mitsubitshi Colt has the same size OH kit. The car can stop now!

The rears are not leaking, so will leave well enough alone for now.
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Old 04-29-15, 04:46 PM
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FYI- Adams rotors will not, does not, and has no plans to make Cosmo rotors.

Because of this madness, and the goofy 4x120 wheels, I am swapping the front uprights to GSL-SE, and modifying a GSL-SE rear axle as well. Front is a bolt in affair, rear is just stripping the factory GSL-SE tabs, and welding new ones to match the Cosmo attachment points.

While I'm in there, I am getting a one piece driveshaft made.
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Old 07-23-17, 04:58 PM
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where would someone sell 4x120 wheels I have some riversides I bought thinking they were 4 x 114.3
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Old 07-26-17, 11:59 AM
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Originally Posted by thatoreoguy
where would someone sell 4x120 wheels I have some riversides I bought thinking they were 4 x 114.3
right here in FL, you can buy mine if I can ever find me a set of original wheels for a cosmo sport.
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