From Dodge Wiki

The Chrysler BE platform (and similar BR platform) was an Automobile platform for Pickup truck. It was introduced in 1994 to replace the Chrysler AD platform and was replaced by the DR/DE platform beginning in 2002.

• BE
  • Application: 1994-2003 Dodge Ram Extended Cab
  • Wheelbase: 134.7 in (Club Cab), 138.7 in (Quad Cab), 154.7 in (3500 Quad Cab duallie)
• BR
  • Application: 1994-2003 Dodge Ram Standard Cab
  • Wheelbase: 118.7 in (short bed), 134.7 in (long bed)