That's not the correct way to measure the width of a differential. The correct way is to measure WMS (wheel mounting surface) to WMS. That is the industry standard, and only way to make an accurate comparison between differentials.
Personally I prefer either the 10.5 14 bolt or the Dana 60. However there isn't anything wrong with an Eaton HO52/72 if it is in good condition and has a gear ratio that works for your needs.
Quote:
Originally Posted by My72BB
Ive got a 71 K20 with a Eaton underneath it...4:10 ratio. It is 51 1/4" wide backing plate to backing plate. Is that normal width??? Seems awful narrow.
Also, just curious as to the value/durability of this axle vs. a Dana 60?
Thanks in advance...Alan
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