The New DT12-HE Transmission: Ultimate Efficiency

Enhancements of the Detroit DT12 Transmission are highlighted, including optimized gearing and higher overall ratios for improved down speeding and an improved oil system design for increased efficiency.

[margaritaviveros]

Only guy who I seen repair these take them apart and repair them in this guy in Irwindale California small shop but the guy knows his shit he must of saved me around a lil over 10 thousand guy took it apart replaced some gears and what do you know 7 months later no problem

[hudsondonnell]

When you demand reliability, demand Eaton-Fuller.

[wooddawg]

As we know commercial trucks are going fully automated with transmissions. It will definitely get more people into the business. It appears these transmissions are non serviceable so if one goes down it’s pulled and replaced with another, the old transmissions are then scrapped and metal recycled which makes sense.
Electric and hydrogen powered trucks are fully automatic by design since they use super powerful electric motors. With a computer shifting the gears human damage errors are greatly reduced.

[Wqghfxz]

These trans make noise every time you put it in D or R. The noise reminds me of old finished front shock when going through a road bump

[SixOhFive]

I hear you need a 4 million dollar machine to fix it

[hgc]

If you've ever seen a Mercedes Benz transmission then you would that this transmission is just that. A big steaming pile of Mercedes shit. Get an Eaton! American made stuff is designed so much simpler.

[ScrambleNorth]

It’s just too bad they wrap it around a garbage Freightliner