Heavier versions such as the L-150 to L-180 models had taller bodywork to accommodate a bigger engine, beefier chassis, and larger wheels.

To hide this in appearance, they receive an extra, full-width chrome grille bar underneath the other two and the headlights.

On L-130 models, a 9-1/2 ft long pickup bed of same design was available and accommodated dual rear wheels.

The LB-140 Milk Delivery truck was also an oddity with its looks and revolutionary semi-automatic clutch, however it had the L-line face.

To further bolster its presence alongside IH's own massive line of heavy construction equipment and meet highway weight limits, the LF-170, LF-190, and LF-210 series was built.