Quote Originally Posted by Zooomer View Post
Take the trans fluid you posted as an example. 1st off, it's not sold anywhere but GM dealerships. You won't find it at Advance or Napa.
Not true...Dextron 3 is no longer produced, so Dextron 6 is starting to show up on shelves everywhere once surplus supplies are depleted.

Then when you do call a dealer, not many stock it. you have to call or drive around.
Also not true. Every GM dealership will stock a good supply for their transmission rebuilding. The only reason for them not to have it would be a shortage by the supplier through GM, which does happen on occasion. Simply for the fact that GM does not make any of their chemicals. They are contracted out by a certain company for a given time. If they do not renegotiate said contract, and it expires then it can lead to a shortage of that certain product or line of products. This happens quite often surprisingly, but fortunate for everyone things get worked out in a timely manner.
When you do go to pick it up will they tell you how much your trans takes?
Will they tell you the difference between Dex 6 and 3?
Yes, and every dealership has the means to look up the information. If they say that they don't, then either they are inexperienced at their job, or they are lying. I get calls like this every single day, not to mention PM's, email etc. I've done this line of work for 10 years, so I do know what I'm talking about.

How about if you are installing a shift kit? What if you have a 245 or 258mm converter? do they know?
One point that our vendors have up on dealerships. This they will not know, since it's not OEM, it's not a concern to them once you start modifying. Specifically for the reason that GM does not want to be held liable for any false information in modification of anything in the drivetrain. And dealerships CAN be held accountable for such things, hence the reason they won't usually install things as a "favor", unless you know someone very well at a dealership.

Ain't competition great?