Does anyone know the gear ratios in the 6-speed tranny?

[weagle99]

I had my truck in manual mode today and noticed that there seems to be a big gap between 2nd and 3rd. Anyone know the exact numbers?

[gmtech4]

any year truck do or what ? lmao !!!!

 

i picked 2011...

 

 

Transmission General Specifications

Name

6L45

6L50

6L80

6L90

RPO Codes

MYA

MYB

MYC

MYD

Production Location

Silao, Mexico; Strasbourg, France; Toledo, OH (USA)

Silao, Mexico; Strasbourg, France; Toledo, OH (USA)

Silao, Mexico; Strasbourg, France; Toledo, OH (USA)

Silao, Mexico; Strasbourg, France; Toledo, OH (USA)

Transmission Drive

Rear Wheel Drive

Rear Wheel Drive

Rear Wheel Drive

Rear Wheel Drive

1st Gear Ratio

4.065

4.065

4.027

4.027

2nd Gear Ratio

2.371

2.371

2.364

2.364

3rd Gear Ratio

1.551

1.551

1.532

1.532

4th Gear Ratio

1.157

1.157

1.152

1.152

5th Gear Ratio

0.853

0.853

0.852

0.852

6th Gear Ratio

0.674

0.674

0.667

0.667

Reverse

3.200

3.200

3.064

3.064

Torque Converter Size – Diameter of Torque Converter Turbine

240/258 mm

245/258 mm

258/300 mm

300 mm

Pressure Taps

Line Pressure

Line Pressure

Line Pressure

Line Pressure

Transmission Fluid Type

DEXRON VI®

DEXRON VI®

DEXRON VI®

DEXRON VI®

Transmission Type: 6

Six Forward Gears

Six Forward Gears

Six Forward Gears

Six Forward Gears

Transmission Type: L

Longitude Mount

Longitude Mount

Longitude Mount

Longitude Mount

Transmission Type: 50

Product Series

Product Series

Product Series

Product Series

Position Quadrant

P, R, N, D, M

P, R, N, D, M

P, R, N, D, S

P, R, N, D, M

Case Material

Die Cast Aluminum

Die Cast Aluminum

Die Cast Aluminum

Die Cast Aluminum

Transmission Net Weight (Approximate)

75–78 kg (165–172 lb)

90 kg (198 lb)

95.1–103.7 kg (209.7–228.6 lb)

110 kg (243 lb)

Maximum Trailer Towing Capacity

Refer to applicable owner's manual

[weagle99]

Thanks. The truck is a 2009 haha. The numbers you posted are close enough for what I was trying to understand.