The #3.5 is the same machine as the #4 but in a lower profile to accommodate houses with lower ceiling heights.

Specifications

Working Height 64″
Overall Length 22.6′
Head Width 69″
Weight 5200 lbs (empty)
Capacity 135 cu. ft.
Tires 12.5L x 16
Tires (Tandem Optional) 9.5L x 15
Required PTO Horsepower 60 HP
Hydraulic Oil AW-68
PTO Hydraulic Pump 22 gpm
Oil Reservoir Capacity 30 gal