[70AARCUDA]

...here are the transmission & axle ratios currently available for the Cruze:

M32(RPO: MZ0) 1.8L 6-speed manual (LS model)
Axle 3.944
_6th 0.744 x 3.944 = 2.934:1 in high gear
_5th 0.876
_4th 1.067
_3rd 1.475
_2nd 2.158
_1st 3.818
_Rev 3.545

M32(RPO: MF3) 1.4LT 6-speed manual (Eco model)
Axle 3.833
_6th 0.614 x 3.833 = 2.353:1 in high gear
_5th 0.744
_4th 0.959
_3rd 1.302
_2nd 2.158
_1st 3.820
_Rev 3.540

6T40(RPO: MH8) 1.4LT 6-speed automatic (LS, 1LT, 2LT, LTZ, Eco)
Axle 3.870
_6th 0.746 x 3.870 = 2.887:1 in high gear
_5th 1.000
_4th 1.440
_3rd 1.912
_2nd 2.964
_1st 4.584
_Rev 2.940

MFH(RPO: D16) 2.0LT 5-speed manual (Diesel, not in NA)
Axle 3.944
_5th 0.886 x 3.944 = 3.494:1 in high gear
_4th 1.121
_3rd 1.481
_2nd 2.158
_1st 3.818
_Rev 3.333


...if there are others, please let me know what RPO code, gearings and applications!

 

[jorgedelajungla]

Hi! Nogales Mexico Folk here, I just ordered a 2013 Chevrolet Cruze, but here the only engine we have is the 1.8 L, and the only manual tranny is the 5 speed... is this 5 speed the same you are posting in the Diesel engine in the chart? i cant find the specs and gear ratios of mine. Thanks a lot!

 

[jblackburn]

Since this seems to be one of the top topics that comes up when a search for "Cruze gear ratios" is done, here are the 2012-2014 transmission gear/axle ratios.

Type:	M32 6-speed manual (MZ0)	M32 6-speed manual (MF3)	M32 6-speed manual (MR5)	Hydra-Matic 6T40 6-speed automatic	Aisin AF40 6-speed automatic
Application:	1.8L (LS)	1.4L turbo - Eco	1.4L turbo (LT)	1.8L / 1.4L turbo	2.0L turbo-diesel
Gear ratios: 1):
First:	3.82	4.27	4.27	4.58	4.15
Second:	2.16	2.16	2.53	2.96	2.37
Third:	1.47	1.30	1.47	1.91	1.56
Fourth	1.07	0.96	1.07	1.44	1.16
Fifth:	0.87	0.74	0.87	1.00	0.86
Sixth:	0.74	0.61	0.74	0.74	0.69
Reverse:	3.54	3.82	3.82	2.94	3.39
Final drive ratio:	3.94	3.83	3.83	3.53	3.20

 

[iKermit]

Thanks Justin we needed this for the COMG.

 

[EricSmit]

There are no gear ratio changes, I believe it's still the same transmission. Same large 1-2 shift gap which exasperates the grind, only now there's more power going through the transmission than before which will make heat issues more prevalent.

These are the gear ratios for the all the Cruze models with a 1.4 engine.

MR5 6-SPEED MANUAL TRANSMISSION SPECIFICATIONS for Non-ECO first gen
Transmission model	MANUAL 6-SPEED
RPO Code	MR5
GEAR RATIOS
First	4.27
Second	2.35
Third	1.48
Fourth	1.07
Fifth	.88
Sixth	.74
Reverse	3.82
TORQUE CONVERTER
LUBRICANT CAPACITY (pints/litre)
Fluid Capacity	4/1.8928
MAX GVW(lbs/kg)	5027/2280.2472

MF3 6-SPEED MANUAL TRANSMISSION for the ECO first gen
Transmission model	MANUAL 6-SPEED (FWD)
RPO Code	MF3
GEAR RATIOS
First	4.27
Second	2.16
Third	1.30
Fourth	.96
Fifth	.74
Sixth	.61
Reverse	3.82
TORQUE CONVERTER
Maximum Engine Torque (lb-ft/N-m)	148/199.8
LUBRICANT CAPACITY (pints/litre)
Fluid Capacity	4/1.8928
MAX GVW(lbs/kg)	5027/2280.2472

MF3 6-SPEED MANUAL TRANSMISSION for second gen
Transmission model	MANUAL 6-SPEED (FWD)
RPO Code	MF3
GEAR RATIOS
First	4.27
Second	2.16
Third	1.30
Fourth	.96
Fifth	.74
Sixth	.61
Reverse	3.82
TORQUE CONVERTER
Maximum Engine Torque (lb-ft/N-m)	148/199.8
LUBRICANT CAPACITY (pints/litre)
Fluid Capacity	4/1.8928
MAX GVW(lbs/kg)	5027/2280.2472

 

[OT4U]

...here are the transmission & axle ratios currently available for the Cruze:

M32(RPO: MZ0) 1.8L 6-speed manual (LS model)
Axle 3.944
_6th 0.744 x 3.944 = 2.934:1 in high gear
_5th 0.876
_4th 1.067
_3rd 1.475
_2nd 2.158
_1st 3.818
_Rev 3.545

M32(RPO: MF3) 1.4LT 6-speed manual (Eco model)
Axle 3.833
_6th 0.614 x 3.833 = 2.353:1 in high gear
_5th 0.744
_4th 0.959
_3rd 1.302
_2nd 2.158
_1st 3.820
_Rev 3.540

6T40(RPO: MH8) 1.4LT 6-speed automatic (LS, 1LT, 2LT, LTZ, Eco)
Axle 3.870
_6th 0.746 x 3.870 = 2.887:1 in high gear
_5th 1.000
_4th 1.440
_3rd 1.912
_2nd 2.964
_1st 4.584
_Rev 2.940

MFH(RPO: D16) 2.0LT 5-speed manual (Diesel, not in NA)
Axle 3.944
_5th 0.886 x 3.944 = 3.494:1 in high gear
_4th 1.121
_3rd 1.481
_2nd 2.158
_1st 3.818
_Rev 3.333


...if there are others, please let me know what RPO code, gearings and applications!

Wow! Thank you! Near to the forum and this is so helpful. Confirms the MF3 is the right transmission.

 

[Jimster480]

Anyone know what AH4 Transmission gearing is? Looks to be the 15-16 transmission.... the dealership told me there is "just one" transmission for all the cars.
The replacement sold at the dealer is $4500 and covers MF3 MR5 and AH4... when asked about the gearing they didn't know. However the "other transmission" they have is AH4 that is part # 19332701. According to a website I found before; the original transmission part number for what appears to be an ECO is 19332700.

However the aforementioned "replacement transmission" part number the dealer & GMPartsDirect sells is 19332699. This is supposed to cover "ALL" the M32 manual transmissions that go into our cars.