brooks379 wrote:
Charlie D. wrote:
Don't know about other transmission but if you do a double drain and fill with filter external filter change after first drain, Transyd and Allison considers that has accomplished a permanent change. No further change is needed.
Are they the same guys that made my sealed , never grease u joint's that went out about 102,000 miles ago ? lol....
I assume you are happy with that? Or would 120k expiry after pumping $20$ worth of grease, and crawling under it a dozen times be a better tradeoff? I love sealed everything. Instead of being a PITA every 6 months, it gets changed when required. That's progress IMO.