Get close to the wall and aim at the rock as shown, the lineup is rather forgiving. Move forward and jumthrow when the shadow of the lamp post is leaving the bottom of your screen. Make sure you're holding shift when throwing. This should burn the far side and top of Truck. If you want to molly near side, release a bit earlier.

Works on both tickrates, video shows 128-tick trajectory.

Chains very well with this smoke.