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With some misgivings, I assure all that Wilwood Superlight 4-piston calipers will bolt onto the front suspension of a Pantera with NO adapters needed at all. You use stock caliper bolts, and the pad spacing fits the stock rotor size. My misgivings are, screwing around with brakes on a street car is serious business- people who exceed their skill levels with brake mod's have gone under 18-wheeler trailers at speed!
OK; the trick is, the Wilwood bolt pattern is wider than the OEM Girling, so you use the upper bolt as-is and drill & tap a third hole for the lower caliper bolt, to the proper metric thread. On some Panteras, the forged-steel steering arms that you're drilling & tapping get VERY thin at the bottom after drilling, so may need building up with weld for strength. This can be done with an oxyacetylene torch and mild steel rod, then dressed flat with a file. Once done, most of the brake force from panic stops in the fwd direction is upward, so the lower bolt doesn't take much stress. Superlite calipers come tapped for 1/8-27 pipe thread, so a dash-4-AN-to-1/8" pipe adapter fitting will screw into the caliper and a double-male dash-4 AN fitting screws into the stock metric Pantera junction block (the threads are close enough to fit). This then allows a dash-4 braided-steel hose to be used in place of your 38-yr-old rubber hose.
3 caveats: the AN fitting into the junction block will need a brake-fluid-resistant o-ring to positively seal against the junction block, the armored AN hose must be the proper length 'cause if too long, it will scrape the magnesium wheel like a lathe tool.... and Campys are only 0.180" thick. If the AN hose is too short, the inner hose can be pulled out of its fittings over big bumps. Finally, Wilwood calipers are not street-legal racing units and thus have no dust seals at all. So at least yearly cleaning is required. FWIW, I did this conversion to our '72 some 20 yrs ago; zero problems since then.
If there are any misgivings on your ability to do this conversion AT ALL, or you don't own the correct tools, take the car & parts to any Pantera vendor for installation. Peace of mind is worth a lot at 150 mph.... And I take NO responsibility for YOUR automotive skills.
quote:
Wilwood Superlight 4-piston calipers will bolt onto the front suspension of a Pantera

This is exactly what 2511 has, and the conversion was done by Quella 35,000 miles ago.

No problems to this date.

Rebuilding kits for these calipers consist of four square o-rings, and I have four sets on my work bench. Rebuilding all four corners hopefully this month.

Larry
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