Thread: RRC brake upgrade

Watching this with interest, but I believe solid rotors are the best for the type of off road we do.

Justin

Yes I've done it, two years worth of testing and still highly recommended.

Bolt hole centres are the same, but bolt size changed along the line somewhere by about 1mm. I had some filing to do on my caliper mount ears to make them fit, then they bolted right on.

I'm using the RRC master cylinder. There's no need to swap it unless it's worn out.
I switched to vented front rotors at the same time.

Dougal,
Are you using RRC rotors still,although vented ones?
Is there any difference between 110 and RRC rotors,such as thickness, diameter or offset?
Cheers Eric.

I know RRC and 110 stubs are swapable tho u need to use the corect bush for the CV if it was me id be using the whole RRC swivel ball with bearings top and bottom insted of the ralko bush on the 110 that way ya just unbolt the ball from the housing and swap em over

Originally Posted by THE 109

Dougal,
Are you using RRC rotors still,although vented ones?
Is there any difference between 110 and RRC rotors,such as thickness, diameter or offset?
Cheers Eric.

Disco/defender/rrc rotors are all the same. I got my rotors from supercheap locally due to shipping costs and got the callipers from paddock spares.

Thanks for all your help guys,I'm now a little wiser

OK,I measured up and trial fitted some 110 calipers to both an 86 and 81
RRC.They did bolt straight on but the 110 uses M12 bolts as opposed to the RRC's using 7/16" UNF which measure about 11mm.To get around the caliper being a loose fit on the bolts you could make up some sleeves,that fit between the bolt and caliper.Or you could drill and helicoil the swivel housing lugs to M12,but there's no going back to standard then.The only other thing is the bracket which supports the flexible brake lines needs to be trimmed substantially to clear the larger caliper,and of course make a new hard pipe from caliper to flexible line(now only a single line).
Cheers Eric.

Originally Posted by THE 109

OK,I measured up and trial fitted some 110 calipers to both an 86 and 81
RRC.They did bolt straight on but the 110 uses M12 bolts as opposed to the RRC's using 7/16" UNF which measure about 11mm.To get around the caliper being a loose fit on the bolts you could make up some sleeves,that fit between the bolt and caliper.Or you could drill and helicoil the swivel housing lugs to M12,

Don't bother.
All bolts have clearance and the 1mm possible difference in caliper location causes no problems.
Mine were originally on an 85 RRC axle with 7/16" bolts, with 12mm holes it worked fine. Now they're on a 97 disco axle (same vehicle) with 12mm bolts and I had to drill the holes to 1/2" (12.7mm) to fit.