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Reply to "Rear stock 15” Campi’s not fitting Wilwoods"

@USCDOC13 posted:

They are 10” in the back. The instructions do you say they fit under MOST 15-inch wheels. The amount they are rubbing is very minimal. Curious to know why I couldn’t machine off a few mm in the spot it rubs? What do most do? Buy new wheels?

First off, when you buy a set of upgraded brakes you are buying the engineering of them as well as the parts and not just lip service and a bill of goods.

It's easy to criticize other's decisions of what components were chosen and why.

Personally I would go back to the seller and request that they correct the situation or take the brakes back. You CAN make a case rather easily of them selling them to you on the premise that they said that they knew exactly what they were doing with a Pantera to begin with and it appears that there was an oversight.

If you bought them yourself based upon your judgement, then you are the engineer and...ooops!



It may be true that the Detomaso race cars were machining the 10" x 15" Campi wheels for additional clearances. Actually when I see the calipers that they picked to race with it suggests to me that somehow their combined thinking on the subject was very limited or at least limited to alternatives to them there in Europe.

Engineering wise it may have worked for them but I wouldn't have gone that route because the solutions to me just plain suck.



Panteras being raced here in North America had a better selection then of brake systems. With the exception possibly of the one Group 4 car, the few others racing were converted street cars that the two that I have seen were running the "Big Ford/Lincoln" calipers and rotors in the front and 65 Mustang front rotors and calipers in the rear.

Those were the brakes being run by Mustangs running in "Trans-Am" at the time. The system proved itself dependable and capable of the "suicide" type racing of those cars.

Those are probably more brakes then will ever be needed on a Pantera and the components are still available for it with the exception of the Mustang rotor, but you can still use your Pantera rear rotor with it and there is positively no clearance problems involved on the 15" rim.



The main issue with that set up is you need to rebalance the front rear braking bias and in the past, there was no parking brake for it.

On the Pantera, now you can use the electronic parking brake assembly from the Tesla.



Why shouldn't you machine your 10" Campi's? First off, they are somewhere around $2,500 each to replace. Second, they are 40 year old magnesium castings. I personally wouldn't just dismiss anything on those wheels as being "expendable". They are thin castings to begin with and as always x-raying something like that is a good idea BEFORE "you cut".

No one here, especially me is going to tell you what to do but as they say in politics, "to the victor belongs the Spoils". You modify them, if there is no problem with them, fine. If they fail under stress, maybe you get killed too?

Those wheels where probably $100 or $150 a piece cost to Detomaso at the time in the early '70s? If they broke one, "so what?"



Exactly where on the wheel is the contact? If it is the ID of the wheel, the issue of correction should be left to modifying the caliper and not the wheel. If it is the back of the spokes, use as thin a wheel spacer as will fix the clearance BUT watch your lug nut to stud engagement. Use generous amounts of "anti-sieze" on all the studs.

IF you look at the Detomaso "racing" parts illustration I believe that you will see that a wheel spacer is to be used. It being a diagram it does not specify when the spacer is needed with what parts

Last edited by panteradoug
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