DTT Transmission failure-Buyer Beware

[GaryF]

I have a DTT transmission and the reverse completely failed at around 10K miles. Shanty a Dtt said I must have backed up a steep hill or something. I had paid for their best transmission. They were kind enough to help me by sending me a stripped down valve block for $173. 94. Thanks DTT.



Browns Diesel Shop that repaired the transmission Thought an accumulator valve or something like that was leaking pressure and caused the bands to slip and burn up. Bill k. stated it was my part that failed not his. Go figure.



Just beware of DTT customer service for out of his area customers. It's your money. I made a big mistake with mine



Gary

 

[Bob4x4]

With all my dealings with DTT many transmissions I have allways been treated very well. Any issues I had were handled more than fairly.



Bob

 

[MVieira]

There must be more to this story. Bad customer service wasn't how DTT's reputation was built. I've had my trans. since 2003 and I still feel it has been the best upgrade I've done to my truck.
Regards, Mike.

 

[FourBarR]

hard to believe this story. DTT has an excellent record for service and warrenty

 

[JR2]

There is more to the story I am sure. DTT has gone above and beyond the normal expectations for me. It is the best thing I ever did to my truck.

 

[dcochran]

Very hard to believe. I've had two tranys from DTT, one in my Y2K and the second in my 06. No problems - just performance. Everybody at DTT bends over backwards for their customers.

 

[Spooled05]

There is more to the story I am sure. DTT has gone above and beyond the normal expectations for me. * It is the best thing I ever did to my truck.

What he said!

 

[JCutter]

Yeah hard to believe.



right now im actually having probs with mine and its going to be taken care of. i had a complete rebuild and upgrade on some components back in april. i lost my forward clutch pack (guessing, stuck in drive, no reverse) and i was told it all going to get taken care of.



Ive always had great custmer service and they have always been great to talk to and explain things to me.



sombody needs to drive forwards and not reverse, lol

 

[JJPage]

No problems with mine, love it !

 

[jgillott]

There is more to the story I am sure. DTT has gone above and beyond the normal expectations for me. It is the best thing I ever did to my truck.

There has to be more to this. It seems that GaryF posted this on January 2, 2008 dealing with the same topic.



https://www.turbodieselregister.com...ansmission-1998-5-2002/194697-no-reverse.html



I can't imagine his truck has been down for 6 months without reverse. I wonder what it was that made him post now about his dissatifaction.

 

[Jim Fulmer]

I've been dealing with DTT products for 6 years now and just short of 120K. The only failure I have had was my doing (670 hp on a stock input shaft... . not a good combo).



There are always two sides to a story!



Jim

 

[JDerbedrossian]

When the original poster is nowhere to be found on his own thread it means only one thing usually, BS.

Jake

 

[BILLUA]

Bull!

I have a DTT transmission and the reverse completely failed at around 10K miles. Shanty a Dtt said I must have backed up a steep hill or something. I had paid for their best transmission. They were kind enough to help me by sending me a stripped down valve block for $173. 94. Thanks DTT.



Browns Diesel Shop that repaired the transmission Thought an accumulator valve or something like that was leaking pressure and caused the bands to slip and burn up. Bill k. stated it was my part that failed not his. Go figure.



Just beware of DTT customer service for out of his area customers. It's your money. I made a big mistake with mine



Gary

I think the mistake was on DTT's part by selling you a transmission.



I have had 2 DTT trans and many dealings with Shanty, Stefan and Bill dealing with issues related to my transmissions that had unrelated problems to their work.



Additionally, Bill K has been known to take the time to help out ANYONE who had transmission questions. My 2 and my fathers transmissions have been bulletproof and the best money we have put in our trucks...



And, having been a previous business owner, the customer is NOT always right...

 

[TRAMPLINEMAN]

I really don't know who or what is at fault here, but what does backing up a steep hill have to do with anything? I understand it generates more heat in the transmission, but not everybody lives in a perfect world where every situation is flat.

 

[GaryF]

I'm down here in middle Calif. It worked good till the reverse failed. They don't seem to have any reps down this way any more. Wonder why? If you live close to them you might be OK if you have a failure. In my instance they seemed to want to blame it on someone else. I have also had many dealings with them 3 trips up there from Calif. Never had a problem with them until I had a problem with the transmission. Maybe if i could have driven it back up there they would have taken care of it, I don know. Their other suggestion was to pull the transmission and send it back up to then. I went with Goerend transmission in the rebuild. Their warrenty is better and I don't have to deal with hotheads and they have more reps. Go with what ever transmission wou are comfortable with. I'm just passing this info on so that you will know what to expect from DTT in you have problems and you aren't clost to them.



Gary F.

 

[Reb.B]

Goerend Trans? I don't think so. This is what happened. Gary came in with trans that had no reverse. He asked if i could change band and possibly the hub. Gary brought it in and sure enough it had failed. Either it was set up too tight, it had a leak (either in VB or Piston), or driver error. I told Gary i did not want to use the same VB that was in Trans. I saw a possible problem with piston, so small, not even sure if it could be it. No builder is perfect, could be leak in VB. Not sure.

Any way, I rebuilt trans, put in new DTT VB, and changed very old DTT TC w/ Goerend Triple Disk. I don't know all the logistics before, but I do know what went back in. It looked like older rebuild (older parts), but it looked fresh. In my mind DTT should have paid for some of rebuild and the whole price on VB. But some of the reason for a lot of warrenties going bad can be customers. Not sure. Gary seemed like a nice guy, didn't want to drive a 1000 miles or send a trans that far. I don't think he did anything out of line, but I would try working with transmission shop more before posting bad stuff, but its been a while since the rebuild, and maybe he just had enough. It can sound like BS until it happens to you, so I wouldn't give Gary a hard time, its his money that was lost.

 

[Joe G.]

The no reverse problem may be the direct drive clutches in the OD unit. If they are bad then the overrunning clutch (sprag) will still allow forward, but only the clutches hold in reverse. That is the reason for the backing up remark. It's not a good idea to pull someone out of being stuck in reverse because of those clutches.

 

[Reb.B]

That can fail too, but they looked brand new, rev band was burned down to the metal. After he lost rev he had adjusted it so he could still be able to use rev.

 

[Joe G.]

Did manual 1 work before the band adjustment? It uses the same band according to my service manual.

 

[Stefan Kondolay]

Untrue BS.

What you guys haven't been told is that eventhough this job was off warranty the offer was made to him to have the job done for nothing if he came to our shop as he was in Oregon. He decided he would deal with it when he got home. I realise my original offer would have put him a couple of days behind and cost him maybe $ 400 in fuel. It was Garys decision to drive home not ours.



When he got home, he was offered to have the trans done at no charge if he shipped it to me . He did not want to do that because of the shipping. Gary chose to take it to Browns without my authorisation and was well within his rights to do so as it was off warranty and was from 2005 he could take it where ever he wanted to.



I was originally told the valve body was the cause of the problem, and again I offered to have them send it to me, I would test it and if that was the case I would look after it. They did not want to send it because I wanted the VB sent untouched. Just pull it out and sent it don't touch it.



They did not want to do that, they wanted a new valve body, so we pulled his records custom built him a new one with his smart controller capacity that he needed did it at less than a 1 /3 rd of the new cost and sent it.



Then they said, actually no it was not the VB after all , it was a OEM servo that was the cause. They repaired the truck, kept and installed the new vb, sent back the old core claimed it was the new one, and tried to reverse the charges. Problem with that, they must not have noticed we serialise the valve bodys and knew that we got the old core back.



There are a lot of honest good people and shops out there that deal with us and some not so honest ones. We always do the best we can to service our customers but we will not be taken advantage of by dishonest people or competitor shops and definitely will not tolerate blackmail. As the credit card company did not comply this is the new plan of attack I guess this is the latest tactic.



From where I am sitting, this guy and this shop deserve each other.