R31 rear calliper kit - more available NOW!

Hi all.

Continuing on from my front conversion I'm not looking at the rear. I intend to use R31 rear callipers and Audi 90 245mm solid rotors using a custom steel adaptor. This will bolt on the inside of the housing flange using the original mounting points for the bearing retainer.

These will be manufactured from 8mm steel plate and fastened to the back of the axle housing flange using the original mounting points with longer bolts and nuts. Laser cut shims are also supplied to replace the original drum brake backing plate.

<b>To fit this kit will require the axle flanges to be machined down to <u>134.80mm </u> to ensure a close fit of the hat over the flange. This wil ensure concentricity.</b>

Current pricing for a pair (L & R) 8mm steel brackets laser cut (incl shims) and zinc plated.

$160 incl postage.

Hi Barney.

Yes, there's a number of other options that all work but i thought I'd enquire non the less. This option is as simple as machining the axle hub to allow the "hat" to slide over, make the mount and it's done. Audi PCD is the same as the Escort.

The Hilux diff is another story regarding rotor fitment and PCD.

Hi Matt.

Just waiting for a price for laser cutting and then some minor machining to achieve the correct offset.

Yes, the rotors are readily available and the machining of the axle flange should be a no problem 5 min job for any machine shop.

I will update this post when I have the final costs.

Paul, the new and improved updated model looks more like a factory fit. I would be interested (depending on price) as I already have a pair of R31 calipers and access to a machine shop.

I'll keep watching your progress. Will they fit under 13" Rims?

Regards,
Craig.

quote:

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Originally posted by Escortpower

Paul, the new and improved updated model looks more like a factory fit. I would be interested (depending on price) as I already have a pair of R31 calipers and access to a machine shop.

I'll keep watching your progress. Will they fit under 13" Rims?

Regards,
Craig.

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Hi Craig - as they're a similar size to the OEM 247mm rotor I would expect the lower profile R31 calliper to fit under 13" wheels easily.

Hi All.

I have updated the original post as the machine shop could not guarantee availability of my original alloy material. I will now be manufacturing from 8mm steel plate and the price altered accordingly. This does not effect the basic application.

I apologise to those who have already shown interest in the original item.

Hi Matt.

Good question - I have looked at this also and I have not come to a conclusion as yet.

Does the thickness of the drum brake plate impact on the bearing and is it still required? From a common sense point of view I would say yes as it would have been engineered to allow for the backing plate to be sandwiched between the housing and retainer.

Any other opinions?

Just consulted an engineer at work and he suggests to retain the backing plate thickness. I had thought of getting a new shim laser cut to suit but I was struggling to justify the additional cost considering there's a redundant backing plate available to modify.

Is it worth the additional $20(est)?