Quote:
Originally Posted by Can'tHave2MuchHP
Glad the thread has been helpful.
The 1500 mile number came from some GM manual. I can't place which one at this time, but it wasn't just made up. The second change is helpful to get all of the break in grease, fluids, and oils out and keep it happy for many miles to come. Especially after track use, the rear diff gets worked REALLY hard and you'll definitely notice the color and smell afterwards. Will the car be fine if you skip the 1500 change? Sure, you may never notice the difference. But for me, it's a must do.
As for torque, I didn't bother to check any manuals on it. I used the "feels about right" method. Snug, and then some. Never lead me astray.
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I just did the 500 mile (oil change plus diff fluid) and other than being messy it was very straight forward to do, which is very nice compared to some other makes.
I have nothing against the peace of mind crowd, I’ve just never done more than one break in service. But, if there is/was some documents from GM saying it is a good idea that is another thing.
I found the torque specs somewhere and unfortunately didn’t bookmark it so I lost it. I did have an issue with the “feels about right method” so that is my piece of mind thing. We all have our “things.”
Any word on when to change MT fluid? I was going to do a track day next year and then change it after that first one.
This thread has been very helpful, especially for part numbers/prices. My dealer kept trying to give me the other diff/eLSD fluid so it was nice to have those handy. But, once I showed them that they saw the difference and while they couldn’t completely match online prices they came close enough for me.