Wheel Base	Beam Spacing (BS)	Wheel Tread Dia.	G	N
13'-0"	60	18	7-3/8	8'-0"
13'-0"	78	18	7-3/8	8'-0"
13'-0"	60	18	7-3/8	8'-0"
13'-0"	60	18	7-3/8	8'-0"
13'-0"	78	18	7-3/8	8'-0"
16'-0"	60	18	7-3/8	9'-6"
16'-0"	78	18	7-3/8	9'-6"
16'-0"	96	18	7-3/8	9'-6"
16'-0"	60	18	7-3/8	9'-6"
16'-0"	78	18	7-3/8	9'-6"
16'-0"	96	18	7-3/8	9'-6"
16'-0"	60	18	7-3/8	9'-7-1/2"
16'-0"	78	18	7-3/8	9'-7-1/2"
16'-0"	60	18	7-3/8	9'-7-1/2"
16'-0"	78	18	7-3/8	9'-7-1/2"