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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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| | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | it's essentially the same rearend, but with larger brakes, and perhaps heavier bearings at the wheel ends, which allows for a higher load capacity (7200 pounds vs 5200 pounds). The third members are interchangeable. The HO72 commonly found with the 5.13 gears, but some were 4.56. The HO52 is generally the other way around, with 4.56 being the common one. Both were also available in a 4.10 in some years.
Bill Burmeister
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