The Grumman LLV mail truck is based on which pickup truck chassis?

The Grumman LLV mail truck is based on a Chevrolet S-10 pickup truck chassis.

Grumman designed the Long Life Vehicle for the United States Postal Service, which needed a purpose-built truck for curbside and residential delivery. Rather than develop every mechanical component from scratch, the LLV used a General Motors chassis and related S-10 hardware, while Grumman supplied the specialized delivery body.

The S-10 connection is sometimes confused with the Chevrolet S-10 Blazer because the LLV used components associated with both S-10 pickup and Blazer configurations. Its front suspension and instrument cluster were similar to S-10 equipment, while the vehicle’s unusual front and rear track widths helped create its distinctive footprint.

The LLV’s right-hand-drive layout placed the driver next to the curb, allowing mail carriers to reach roadside boxes without crossing the vehicle. Grumman produced the LLV from 1986 to 1994, and the design became one of the most recognizable postal vehicles in the United States.