Grit dog wrote:
^Just send me your "old" fluid, ittlll save me a few bucks!
Or better yet, I'll let you pull maint on some of my stuff that actually needs it! Lol. Just trying to help a brother out...
On a serious note, well if you didn't have new trans fluid already, Allison swears by Transynd atf. To the point that they used to (may still?) double the OE warranty on med duty transmissions if switched out. Worth a look see if you're OCD about maintence on your Dirtymax.
Transynd is what has been in our Allison since the first drain and refill. Complete drain. Just the 7 qt drain the times I have done the job. Might do it this summer again.
chevman