Thanks for all feedback. I have gotten my Amsoil 75W-110 from a local guy and doing the fluid changes all today.

 

Let me know if you anything else.

 

Just so you know - if you use Amsoil products and want to save a significant amount of money on the products (by getting them at dealer cost) - join the Preferred Customer Program through Amsoil. You can join for 6 months for $10 or 12 months for $20.
The savings on one case of Amsoil motor oil pays for a one year subscription.
And just so you know - dealer cost for SG gear oil is significantly less than what the HTG is selling the oil for ($18 per quart is steep).
The savings on three quarts of SG75W110 puts you $4 ahead on a one year membership. PM if you want specific information.

 

i have to agree that amsoil gear oil is great in my car. I run 75w140 for my 4.57 diff and it comes out clean. I change the gear oil roughly every 10k miles because of the 4.57 gear. smear test shows good wear and no fuss.