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2011 RAM 2500/3500 HD SPECIFICATIONS
2
TRANSMISSION: 545RFE—AUTOMATIC FIVE-SPEED
Availability
Standard with 5.7-liter engines on 2500 series models
Description
Three planetary gear sets, one overrunning clutch, full electronic control,
electronically controlled converter clutch
Gear Ratios
1st
3
2nd
1.67—upshift; 1.50—kickdown
3rd
1
4th
0.75
5th
0.67
Reverse
3
Overall Top Gear
2.50 with 3.73 axle ratio; 2.75 with 4.10 axle ratio; 2.14 with 3.42 axle ratio
TRANSMISSION: 68RFE—AUTOMATIC SIX-SPEED
Availability
Optional with 6.7L Cummins Turbo Diesel engine
Description
Three planetary gear-sets, one overrunning clutch, full electronic control,
electronically controlled converter clutch
Gear Ratios
1st
3.231
2nd
1.837
3rd
1.41
4th
1
5
th
0.816
6
th
0.625
Reverse
4.444
Overall Top Gear
2.33 with 3.73 axle ratio; 2.56 with 4.10 axle ratio
TRANSFER CASES: NV271/NV273
Availability
NV271—Standard 4WD ST
NV273—Standard Laramie; Optional SLT
Type
Part-time
Operating Modes
2WD; 4WD High; Neutral; 4WD Low
Shift Mechanism
NV271—manual; NV273—electric
Low-range Ratio
2.72
Center Differential
None