The only one that has never had a issue with a ATS transmission is Tomac. I went through one and still have one in my truck. So far so good and I have put it through some abuse but not much any more. These were drop in units
Would I do it again? Probably not as Suncoast seems to have the Allison running the best.
The first one failed shortly after being installed de-laminated cluthes. Clearly a warranty coverage failure and that was where the problem was. Their BS and a ATS dealer installation requirement is just that BS. Your on your own they give you no list in your area it's up to you to find one. IMO when you have a failure or a problem and you call tech support they should TELL you bring it here! Nope nuttin
There is only a couple places in my area I'd let work on my truck. I trust my Chevrolet dealer 100% they're the ones that did the install. Who better? No one IMO
Since they aren't a authorized dealer ,well you get it. Then I find out through ATS finally who is a authorized dealer in my area they tell me Jannetty Racing! As many times as I've been there never new it. I would have literally pushed my truck there as they are the only other one that I would allow to work on my truck as Ted stands behind his work.
The kicker is about this "authorized dealer" BS is I did them a favor ans swapped out valve bodies on my back for them KNOWING it wasn't the issue. Here they'd allow me to work on it ,non authorized dealer but they were giving me shit about the dealer. Go figure
Nonetheless I was pretty pissed as they wouldn't fork over the labor costs. BUT if not for Wade brokering a deal I'd still have a spare transmission a extra valvebody and crate sitting here on my floor. In the end Clint did make it right.
ATS sells good products and their transmissions I'm sure can keep up with it's competition but their warranty policy is for the birds. I aint bashing just sharing my experience, your mileage may differ so the say.
I remember all that crap very well.
The problem with their 5 year/500K warranty is you will probably need to use it before the truck leaves the shop.