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Originally Posted by fastraxsg
I've got a Torana LJ (1972) disc and drum set up in my car.
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I'm guessing you have the very early cast iron PBR Holden Torana calipers. And thin LC/LJ non-ventilated torana discs. Do you have any of the later Torana's there like UC Torana's(1979-). The last of this model had much superior alloy Girlock calipers. The thicker rotors and girlock calipers from UC will be a bolt on replacement on LJ torana front end. The only thing to watch is the brake flexible line fitting changed to metric, so will mean adapting or putting on a new flair nut.
Another option is to grab HQ Holden brake conversion kit for Torana. It uses LC/LJ etc Torana front drum stub axles, machine a little off and then bolt an adaptor plate on to mount the HQ caliper. The HQ Holden rotors are large ventiated rotors, HQ calipers were also larger, more pad area. Same deal as above, if you go to really late WB Holden(1979-) brakes, they changed to better Girlock locks. It's pretty easy to make these adaptors. And you can find them 2nd hand. I think I even saw them in our club mag for sale by a member.
Hey, nothing wrong with Torana stuff. We have a very successful Cobra kit over here in Aus that guys above are talking about. DRB Cobra runs later LH-UC Torana (1974-1980) torana suspension. Performs amazingly well.
Pad wise, for just street use, a lot of guys here run Bendix Ultimates.