Rectifiers - Stay or Go?

I'm in the midst of converting a Bridgeport Series II Delta Dynapath
10 CNC mill to Rutex / Mach2. As I disassembled the electronics I
discovered a fairly large rectifier on each of the Baldor servo
motors. The rectifiers are built by Powertran and they look like
small (i.e. 24V; 5 amp) transformers. The rectifiers are the last
component before the motor itself - meaning that the rectifiers are
located after the old servo drives. Question: Should I leave these
in my conversion - wire them back identically - i.e. after the Rutex
2020 drives?

Additional information: The old system appears to run on
approximately 116 VDC (hence the bigger Rutex servo drive) and the
specs on the motor are as follows:

Cont. Stall Torque: 500 oz-in
Peak Stall Torque: 2,046 oz-in
Max Terminal Voltage: 120 volts
No load speed: 2,500 rpm
Rated Current: 10 amps
Torque Constant: 54 oz-in/amp
Voltage Constant: 40 V/Krpm
Terminal Resistance: .9 ohm
Armature Inductance: 3.0 Mh
Electrical Time Constant: 3.3 Ms
Amps @ Peak Torque: 39 amps (again why I went with the Rutex 2020)
Armature Inertia (motor & tach: .2212 oz-in-sec
Static Friction Torque: 16 oz-in
Viscous Damping Factor: 25 oz-in/Krpm
Max Armature Temp: 155 C
Thermal Resistance: 1.3 C/watt

Any help and explaination of why these are in the system would be
appreciated,

Bob Jacoby