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48RE Transmission

48RE Transmission Specs & Gear Ratios

 

 

 

 

 

 

 

 

Chrysler/Dodge 48RE

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 will agree the transmission needed a 5th gear like the Ford TorqShift or Allison 1000 to truely be competitive.

 

48RE Ratios

Gear:

1

2

3

4

R

Ratio:

2.45 : 1

1.45 : 1

1.00 : 1

0.69 : 1

2.21 : 1

 

 

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
• Strength Designation 8 (on a scale of 1-9, 9 being strongest)
• Rear wheel drive
• Electronically controlled