So I've read some people that regret getting their T-Case flushed and I'm wondering if it's even necessary to do. I don't beat on the car, generally keep it at 3k rpms once and once and a while 4k rpms. Is there a reason to do this if you don't beat on the car? I want it to last another 100k and I'm at 100k right now and so far it hasn't been done. The car runs and shifts great. Thanks!

 

Basically this is what happens. You change your fluid and you save the life of your case for another 50k miles until the next change, or you change it, you case starts leaking, and you realize that you need a new case anyways. Basically changing your fluid will save your case, or tell you that your case is on its way out. However, not changing the fluid is a guaranteed problem in the future when your case starts cracking and you need a replacement after another 10k miles.

 

Changed mine about 2 weeks ago @ 56000 miles. no regrets and I feel better about doing it.