48RE Transmission

48RE Automatic Transmission

48RE Transmission Specs, Gear Ratios, & Information

 

 

48RE Gear Ratios:

Gear:
1
2
3
4
Reverse
Ratio (:1):
2.45
1.45
1.00

0.69
2.21

 

 

 

 

48RE Transmission Specs:

Transmission:

48RE automatic transmission

Manufacturer:

Chrysler

Production Run:

2003 - 2007 Dodge Ram 2500/3500

ATF:

ATF+4 automatic transmission fluid

Features:

- Similar to the 47RE

Additional Info:

48RE:

- 4 speed

- 8 (strength designation on a scale of 1-9, 9 being strongest)

- Rear wheel drive
- Electronically controlled

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The 48RE transmission is a heavy duty transmission based on the 47RE, but proved to be much more reliable and stronger than the 47RE. Like its counterpart, the transmission has its limits and a 48RE can quickly be killed when the ouput of the Cummins diesel is increased. While it has a good reputation, most can agree the transmission needed a 5th gear like the Ford TorqShift or Allison 1000 to keep the Cummins diesel in its peak torque range.

 

 

Related Transmission Specs:

Dodge 47RE Dodge/Chrysler 68RFE
Allison 1000 Specs Ford 4R100