Thread: Differential Fluid
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Old 05-20-2020, 09:39 PM   #9
7speed
 
Drives: 21 SS
Join Date: Oct 2017
Location: Dallas
Posts: 367
Quote:
Originally Posted by JCunningham View Post
ask any diff builder.
Doubt a mass produced car just driven on street needs this before manufacture interval. Road course use sure.
I did mine at 40k.
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