Brake rotor ‘hat’ top measurement
#1
03-27-2018, 12:57 PM
Brake rotor ‘hat’ top measurement
Hi all. I need to know how thick the ‘top’ section of an Aerostar brake rotor is. This is where the centerbore and wheel stud holes holes are located. If anybody has a rotor laying around and can check the thickness with a dial caliper I would much appreciate the gesture! I have an idea up my sleeve and need to know if something will work. Thanks!
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#4
04-03-2018, 10:28 PM
My aero is a 95. However, posting this thread got me wondering if the thickness of that section differers between aerostar years, ranger’s rotors (with the same bolt pattern), or any other variables that might be. I’ve held many hundreds of brake rotors in my hand but never bothered to measure that thickness. This thread seriously opened up a can of worms of curiosity in my mind... !
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#5
04-04-2018, 01:27 AM
I just have AWD rotors as well, and they don't have the hub cast in, so the thickness of the hat is much thinner than the 2WD model. But other than that, every year of Aerostars had ALMOST the same rotors.
In the earlier models, the rotors were bi-directional; there was one model that could be mounted on either side. they all had the hubs cast into the hat.
Then in 1990, the 4WD models were introduced, and they used simple flat hat tops with no hubs.
In 1992, Ford introduced rotors with directional vanes to help improve cooling, as these brakes were woefully undersized. These were side-specific.
Otherwise, all 2wd rotors will fit and work on all-year 2wd vans, while all 4wd rotors will fit and work on all year 4wd vans. If you used the non-directional rotors, they will not be as effective in heavy duty applications.
In the earlier models, the rotors were bi-directional; there was one model that could be mounted on either side. they all had the hubs cast into the hat.
Then in 1990, the 4WD models were introduced, and they used simple flat hat tops with no hubs.
In 1992, Ford introduced rotors with directional vanes to help improve cooling, as these brakes were woefully undersized. These were side-specific.
Otherwise, all 2wd rotors will fit and work on all-year 2wd vans, while all 4wd rotors will fit and work on all year 4wd vans. If you used the non-directional rotors, they will not be as effective in heavy duty applications.
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hartigtj
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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