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Click on image for the lowdown. 
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| | | Forums66 Topics128,029 Posts1,055,417 Members48,422 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | Disc brakes don't necessarily reduce the overall width. Rotors are either mounted to or are part of a hub which has bearings that are supported on the spindle. The wheel is subsequently mounted to the outside of the hub. To determine the overall width you would need to measure the outside dimension of the hubs on the current axle and the proposed replacement. There can be a lot of variables depending on fender clearances, wheel width, and offset.
Fred.
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes 1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes 2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans 1947 Willys CJ2A w/F-Head engine
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