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Old 03-30-2016, 04:31 PM   #6
kwmech
Senior Member
 
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,391
Re: small and big bearing hubs

Quote:
Originally Posted by 61K10 View Post
the 3/4t backing plate have a bigger center hole?
No, same hole, but the 3/4 ton rotors are larger in diameter than the 1/2. So you need the 3/4 ton plate so the caliper will sit on the rotor in the correct place. If you use the 1/2 mounting plate the caliper will rub on the rotor.
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