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I recently had a new Wilwood 13 brake system installed on my 72 Pantera. The installation included 13 inch rotors and 4 piston calipers all around. When I drive the car now I get a very severe vibration making the car almost unusable. At first I thought it might be the tires flat spotting since I don't drive it that often. I have Michelin P Zero tires installed which I don't believe flat spot but I drove the car for a while to see if the vibration would go away but it did not. Did anyone have a problem like this and how did you solve it or does anyone have any suggestions at what to look at?

Thanks.
Bob W.
Chassis # 3057
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Before you have the wheels balanced I’d check that the wheels are turning true (no wobble). They may not have the top hats on the rotors seated correctly. The other thing to check is that Panteras use hub centric wheels. Depending on the top hats used the hub may not be mating to the wheel correctly. Also some kits come with a couple of speed nuts that go over the wheel studs to hold the top hat. These can misalign the wheel. I assume the vibration is not just under braking.

Hopefully you had a Pantera vendor install the brakes and you can just take the car back to them. On the other hand if it was a Pantera vendor they should have done a test drive before returning the car to you.

Mike
Last edited by pantera1887
This could be something minor to an absolute catastrophe waiting to happen.

Depending on how the brake upgrade is set up (external hats?) it could be a number of things; stud shoulders not allowing wheel seating, hats, calipers etc. If the rotors were replaced all round then the rear hubs came apart, could be just the half shafts or something far more serious.

Please, please get the car transported straight back to the brake upgrade installer for a thorough inspection and correction.

Julian
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