Hydra-Matic 6T35 six speed auto from USA ?
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Let's hope they figured out how to build this one better than the problem-ridden 6T40!
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252 Posts
That might be gearbox max torque, but it definitely isn't input torque. The 6T80 is only rated to 380 lb-ft, so this isn't going to be anywhere near that.
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15 Posts
Just curious why the 8L90 is rated at a max gearbox torque of 738tq. If the 35 is in fact 350tq.
Read earlier posts......I got a bit rambunctious with my description.......and admitted it.
Rob
Regarding the 6t35 vs the 6t40......the 6t40 was in my 2012 Cruze as well as my new Trax.
Although I found the upshift quality a bit abrupt at certain throttle positions, frankly, I had no issue with its operation.
I'm rather persnickity about shift quality and I had no real glaring issue with the 2012.
Evidently there was a lot of programming time put into the unit over the years.....the 2015 is quite, uh, mellow for lack of a better term.
Shift quality is almost imperceptable on light throttle and quite firm (not harsh) on deep throttle.......an enhanced feeling compared to my 2012.
This is probably why we rarely hear shift concerns from the members operating 2013 and newer Cruze's......GM got it fairly well dialed in.
Rob
Although I found the upshift quality a bit abrupt at certain throttle positions, frankly, I had no issue with its operation.
I'm rather persnickity about shift quality and I had no real glaring issue with the 2012.
Evidently there was a lot of programming time put into the unit over the years.....the 2015 is quite, uh, mellow for lack of a better term.
Shift quality is almost imperceptable on light throttle and quite firm (not harsh) on deep throttle.......an enhanced feeling compared to my 2012.
This is probably why we rarely hear shift concerns from the members operating 2013 and newer Cruze's......GM got it fairly well dialed in.
Rob
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17,895 Posts
Heh, I had 2 2015 rentals and caught them in between shifts or just plain confused in stop-and-go traffic. One LURCHED into the next gear down after barely touching the gas pedal. It did make better use of the engine's torque at low revs than the 2013 rental did, which seemed to like to rev a lot for power around town. Hopefully they've enhanced the programming a bit further...
Well, you really shouldn't use your experience in a rental as much of a guide.
This unit, as we know, "learns" the driving habits of the operator.
With a rental, it is 'unlearning/relearning' and depending on how long the last driver had it, it may have a bunch of 'unlearning' to do.
The dealer I hang out at, in an effort to reduce used car customer concerns about the trans, clears the Cruze TCM on every trade to speed up the learning process.
Rob
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6,915 Posts
My 2015 sonic auto is way smoother than my 2012 cruze was. Every situation I've driven in over 3000 miles so far has been better, except real stop and go driving. The trans can still get confused especially when you driving 0-25mph where it has 1-4 gears to choose from. Its the most clunky hovering around the 2nd/3rd or 3rd/4th shift points. Only fix is to lock the car in M2 and listen to the engine rev the few seconds you get to go 30mph.
Side Note: The sonic automatic works exactly like my cruze RS automatic did, it doesn't auto shift on throttle inputs when using manual mode. I was expecting it to work like the Cruze ECO auto and auto shift in manual mode, manual mode only allowing you to lock out upper gears.
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Yep, not great in stop and go. OK otherwise, and a heck of a lot better than my first impression of a Cruze - a brand new 2011.
I also always thought they were a bit oddly geared - the first 3 or 4 gears are way short, shorter than even the LT manual ratios. The car rushes through them, then refuses to grab 6th for the longest time (46-48 mph?)
Ive had a few older 2.4 Malibus as rentals, and the 6T40 was perfectly well behaved in those cars. Probably less tuned for max fuel economy, but as a result didn't seem to hunt as much.
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4,156 Posts
Found this on the new Cruze, hope it is useful.
2016 Chevrolet Cruze Offers More of Everything and 40 MPG Highway
2016 Chevrolet Cruze Offers More of Everything and 40 MPG Highway
Full specs can be found here: Powertrain Products [h=1]Product Highlights[/h]
- Higher-capacity version of the current 6T30 transmission
- Comparable torque capacity of the larger 6T40, but in a smaller, 11-kg (24 lbs) lighter package
- Clutch-to-Clutch shift operation
- Adaptive shift controls
- Space-saving hyper-elliptical torque converter
- IX Gear Pump
- Ground and honed gears
| Type: | Six speed front-wheel-drive, electronically controlled, automatic overdrive transaxle with an electronically controlled torque converter clutch. |
| Maximum Engine power ( hp) | 160 hp (119 kW) |
| Maximum engine torque: | 174b-ft. (235 Nm) |
| Maximum Gearbox torque: | 174 lb-ft. (235 Nm) |
| Gear ratios: | MNU |
| First: | 4.449 |
| Second: | 2.908 |
| Third: | 1.893 |
| Fourth: | 1.446 |
| Fifth: | 1.000 |
| Sixth: | 0.742 |
| Reverse: | 2.871 |
| Final Drive Ratio: | 3.140 |
| Maximum input speed: | Rev 3000 rpm 1-2 7000 rpm 2-3 7000 rpm 3-4 7000 rpm 4-5 7000 rpm 5-6 5880 rpm |
| Maximum input in 6th gear: | 4364 rpm |
| Maximum validated gross vehicle weight: | 1894 kg (4175 lbs) |
| Shifter Positions: | P, R, N, D, M |
| Case material: | die cast aluminum |
| Shift pattern: | Variable Flow Solenoids |
| Shift quality: | Variable Flow Solenoids |
| Torque converter clutch: | Variable Bleed Solenoid |
| Converter size: | 220mm (reference) (diameter of torque converter turbine) |
| Fluid type: | DEXRON® VI |
| Transmission weight: | wet: 75kg (165 lb) |
| Fluid capacity (approximate): | 7.9L |
| Bottom pan removal: | NA |
| Pressure taps available: | Line Pressure |
| Transfer design: | Two-axis design, Output Chain |
| Assembly sites: | TTO (Toledo) |
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