Thread: Disc Brake Conversion.

Originally Posted by TJWA

Tried the bracket today....it fits perfectly, well done Adam! The quality is excellent, it looks and feels strong enough to do the task, but will no doubt still require an engineer to verify.

The two caliper bolts are Metric 12mm x 1.75mm x 30mm. I tapped the bracket pre cut caliper holes out. The recommend drill size for that tap is 10.2mm.

It's tight to get the lower caliper bolt in, but it fits (same as the original bracket)(See photo marked in yellow).

I can still see no reason why the original bracket has a chamfer in the edge (circled in photo in green).

It looks as though there may be no need to have a spacer, the bottom edge of the bracket is where the caliper bolts to, so whatever we lost on the top has not changed the fit. As with the original bracket I had to fit a 3mm washer inbetween to make the caliper sit at an even height on the disc.

The disc is fitted to the underside of the hub with 6 Metric 10mm x 25mm bolts. I have removed the 12oclock and 2oclock bolts for the rear photo.

I also pulled apart my Discovery wreck rears today, the pads and calipers are the same, but the discs are deeper and will not fit.

Series III 272309 Rims will not fit. Discovery 1 Rims will fit with a 5mm wheel spacer.

Part Numbers:

Caliper - LOCKHEED 3242 292C L8 PQ (IDENTICAL TO DISCOVERY REARS)

Disc - 11 93 E BB MIN TH 11.5 MM NB 93 (NOT DISCOVERY REARS)

Pads - AP LOCKHEED 5867A1R8 M (IDENTICAL TO DISCOVERY REARS)
or APEC TYP 8823 PAD 582 1 OD23

In the second pic is that the bolts that need to be counter sunk. The disc looks like it clears them bolts.

(NOT DISCOVERY REARS) this means we need to find out the right disc or what its off yeah ?

I thought they where in the rear position to. . .


I haven't heard back from the engineer yet ...

I have updated the marked up photo with a red circle around the bolts that needed to be countersunk should we use a 12mm caliper. This is so they would clear the hub. The caliper pictured is an 8mm so there was no need to countersink it.

Yep, we've got to find out what disc that is.
I've tried multiple Google's of the part numbers with quotes all over the place, but still no luck. I noticed that they have 6 holes instead of 5 like Rovers do.
I've contacted the last owner of the set to ask if he can contact or put me in contact with the person who made them in the UK.
Once we can identify the disc rotor, it would be a case of putting them on a big lathe, cutting a tight hole in the centre to fit the hub through, then drilling and tapping 6 holes.

Originally Posted by TJWA

<snip>

Series III 272309 Rims will not fit. Discovery 1 Rims will fit with a 5mm wheel spacer.

<snip>

While we all know that spacers are illegal in Australia. By removing the drum brakes you are narrowing the track by twice the thickness of the drum, so this needs to be restored. (By the 5mm spacer.)

I wonder if you could machine the drum part off the originals leaving only the centre (spacer) and use the original counter sunk screws to hold the now spacer onto the hub?

Hi
This is a setup i bought from a wrecker many years ago. It did come from a s3 wagon. I think the disk came from a early falcon like a XP or something like that. I can take it apart if anyone is interested.

Here is the valve I was talking about



If you like I can pull my rear brakes off the disco diff if it helps

Disco rear disk rotor part number is FTC1381 they are the same for defender and range rover

Adam

Fronts are FRC7329 which was also the rears on 110 till WA chassis numbers

Adam

Originally Posted by LRO

Hi
This is a setup i bought from a wrecker many years ago. It did come from a s3 wagon. I think the disk came from a early falcon like a XP or something like that. I can take it apart if anyone is interested.

I would be keen to have alook at that in bits to see what was used..

What holds the calipers ?

Originally Posted by Lotz-A-Landies

While we all know that spacers are illegal in Australia. By removing the drum brakes you are narrowing the track by twice the thickness of the drum, so this needs to be restored. (By the 5mm spacer.)

I wonder if you could machine the drum part off the originals leaving only the centre (spacer) and use the original counter sunk screws to hold the now spacer onto the hub?

Good point. Come to think of it, I think the spacer looked as though they had holes for the drum screws, they probably are made from old drums!

Originally Posted by LRO

Hi
This is a setup i bought from a wrecker many years ago. It did come from a s3 wagon. I think the disk came from a early falcon like a XP or something like that. I can take it apart if anyone is interested.

Oh, that would be awesome if you have the time. It would be great to compare and eventually come up with a sticky showing how to make your own set that have already had engineering approval.