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want to install larger brakes DM690


raydurr

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I have a DM690 1990s vintage that I would like to install larger brakes on . Currently steer axle has 16.5 x 5 Q and drives have 16.5 x 7 Q shoes. I do not want to change out brake spiders/ backers. I do not mind new drums though. I would like to go to 6 inch on the steer and 8 5/8 on drives . What pn drums should used. My trucks are unimount with 20000 steer axles and 44000 rears

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