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45 Posts
Why is it that during my 600 mile oil change they only did the engine and diffrential and not the transmission. I would assume if the were concerned about metal particle from the lapping of the ring and pinion, they'd be concerned about the transmission too since there's a lot of metal to metal contact there too. Can I safely change this myself and use Amsoil Severe Gear 75W-90 which is what I want to use in the diffrential too. What I really want to know is, why didn't they address the gear wear in the transmission.