I did not know
We have a 2007 Chevy HD 2500 truck that we bought new. We pulled and lived in a fiver for three years. I had the tranny serviced every 25,000 miles while towing, and since, every 50,000 not towing. ...
Forum Discussion
So who did the servicing every 25,000 or 50,000 miles. Did or do you use Allison specified approved synthetic transmission fluid