M3 Series GVW Frame Sprositive Drive GCSA Suspension
M3 UR HD 4,200 lb Aluminum Option 2,184 sq in YesA

M3 Series GVW Frame Sprositive Drive GCSA Suspension
M3 UR HD Plus 4,200 lb Aluminum Option 2,470 sq in YesA

XT Series GVW Frame Sprositive Drive GCSA Suspension
XT UR HD 4,200 lb Aluminum Option 1,716 sq in YesA

XT Series GVW Frame Sprositive Drive GCSA Suspension
XT UR HD Plus 4,200 lb Aluminum Option 2,090 sq in YesA

EZ Series GVW Frame Sprositive Drive GCSA Suspension
EZ HD 5,500 lb Steel No 2,380 sq in N/A
A - SCS, HD 4 Link