Re: Rear brake upgrade: 11” to 13”
I did this swap several years ago on a 3/4 ton 14 bolt that I used in my dually...those 13" drums are massive!
On my cab & chassis rear I'm working on now it uses a different type of spindle nut that gets keyed to the spindle and has a wire type retainer..pretty slick way of locking the spindle nut.
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1972 C/30 133" W.B. C&C
1970 GMC 3500 157" W.B. single wheel C&C
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