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Click on image for the lowdown. 
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| | | Forums66 Topics128,090 Posts1,056,371 Members48,442 | | 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
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | The Master Cylinders may look the same, but they will have different bore sizes. The 1/2 ton may be 7/8" or 1" while your 2-ton may be 1-1/4". See if the part number and bore size are cast into the side of the cylinder. Mike B  | | |
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