MRC-107
AN/GRC-155
The AN/MRC-107 consisted of:
AN/GRC-155 Communications Pallet
M151 1/4 ton truck (modified with overload springs and a 100 amp generator)
M416 trailer
The AN/MRC-108 had the AN/GRC-153 pallet.
When the HF radio systems were upgraded, both pallets received an "A" suffix as did the overall designation, i.e., MRC-107A and MRC-108A