Baxters and Kenects (sp?) carry Redline 75W80. That is what I will be putting in my tranny and diff when I get it put back together. It is under $8 per quart.
75W90 oils are recommended for most street driven and racing differentials. Also for Limited Slip Manua Transaxles which require 90 WT oil. Contains Limited Slip friction modifiers.
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