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Old 08-19-2021, 10:11 AM   #87
bry593
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Join Date: May 2016
Location: Oklahoma
Posts: 201
Re: Eaton HO72 rear axle

Quote:
Originally Posted by BigBird05 View Post
Does it matter what size brakes you have? Are all E-bakes parts for HO52 and HO72 the same?
I can tell you that most of the components of a 14-bolt brake hardware kit fit the HO52/72. However, the spring cups have a different pivot diameter and are not compatible. This also means that you can't use a 14-bolt self adjustment arm. This is also a reason you can't use 14-bolt brake shoes.

The star adjustment screw assemblies are compatible, as are the springs (one return spring has an extra bend but still works). You will also need the strut rod springs from a 14-bolt thru late model axle as these are not in the hardware kit. That strut spring stayed the same all the way up through the 2000's. Buy strut springs for a 2000 Chevy Express 3/4 ton and these will work fine.
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1971 C20 Custom Deluxe, HT383, 4L80E, 3.73 Locker, 4 Wheel Discs
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