TM 9-2330-392-14&P 1-10 Change 2 1-10 DIFFERENCES BETWEEN MODELS. NOTE • Light HMMWVs that have been modified have a decal on the rear crossmember where the pin- tle attaches that states: “AUTHORIZED TO TOW TRAILER WITH MAX GROSS WEIGHT OF 3400 LBS”. An MWO tag should also be present on the driver’s side reinforcement panel (just behind the seat) that identifies MWO 9-2320-280-20-7 has been applied. • Heavy  HMMWVs  that  have  been  modified  have  a  stencil  on  the  rear  bumper  reinforcement plate  that  states:  “AUTHORIZED  TO  TOW  TRAILER  WITH  MAX  GROSS  WEIGHT  OF 4200 LBS.” An MWO tag should also be present on the driver’s side reinforcement panel (just behind the seat) that identifies MWO 9-2320-280-20-6 has been applied. a. The difference between the M1101 and M1102 cargo trailers is listed on the Identification and Shipping Plates. The difference between the maximum Gross Vehicle Weight (GVW) is based solely on the towing vehicle. All trailer models can be towed by a HMMWV M1097/M1114 series in accordance with the identification plate. The M1101 cargo trailer and the trailer chassis can be towed by a HMMWV M998/M1038 series when the GVW  does  not  exceed  3400  pounds.  To  determine  which  HMMWV  can  tow  a  chassis  version  of  the  HMT, look at the trailer data plate that identifies the total system weight. Use a modified light HMMWV if system weight is 3400 lbs or less. Use a modified heavy HMMWV if system weight is 3400-4200 lbs. There are no physical differences between the M1101 and M1102 trailers. Refer to table below for towing vehicle require- ments. b. The data listed on the Trailer Chassis Identification and Shipping Plates is different from both the M1101 and M1102 trailers. In addition, the trailer chassis has no cargo body. HMMWV Model Number HMMWV Vehicle Description MWO Requirements M1101 M1102 <3400 LBS <4200 LBS Remarks M998/M998A1 Cargo/Troop A A M1038/M1038A1 Cargo/Troop A A M1097/M1097A1/M1097A2 Heavy Variant B B B B M966/M966A1 Tow Carrier A A M1036 Tow Carrier A A M1045/M1045A1 Tow Carrier A A M1045A2 Tow Carrier B B B B M1046/M1046A1 Tow Carrier A A M1046A2 Tow Carrier B B B B M1025/M1025A1 Armament Carrier A A M1025A2 Armament Carrier B B B B M1026/M1026A1 Armament Carrier A A M1043/M1043A1 Armament Carrier A A M1043A2 Armament Carrier B B B B M1044/M1044A1 Armament Carrier A A M1037 Shelter Carrier B B See Note 1 M1042 Shelter Carrier B B M996/M996A1 Ambulance M997/M997A1 Ambulance M1035/M1035A1 Ambulance A M1035A2 Ambulance B B B B M1113 S250 Shelter Carrier B B B B See Note 1 M1114 UP-Armored B B B B Key: A = MWO 9-2320-280-7 B = MWO 9-2320-280-6 <3400 LBS = Any system mounted on HMT chassis with GVW of 3400 lbs or less. <4200 LBS = Any system mounted on HMT chassis with GVW of 4200 lbs or less. Note 1. Pintle extensions are required with SICPS (M788) mounted. MWO 9-2320-280-6 not required in this case.