10 Sline Diffs

Zebra

Well-known member
Jul 15, 2007
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Louisa Va
Changing out 10 sline diffs this weekend. I noticed that these diffs can have 2 different pinion spline gear configurations. 1 has several splines like 30 est and 1 was only 4. Does this signify age of diff or model?


Just Curious George