Astrovan, 4.3 engine,
automatic transmission,
149,000 miles.
Registration (about $634.00 due) and passed safety inspection on November 1, 2025.
Optional heavy duty suspension with 6 lug wheels, tow package and optional x engine. Rare package.
Very clean inside and out.
For the 2003 Chevy Astro, the "heavy-duty" package was its factory towing package, which was identified by the RPO code Z82. This package was primarily designed to increase the van's towing and payload capabilities. The Astro's rugged, body-on-frame construction and truck-based components, including its powerful Vortec 4300 V6 engine, already gave it a strong foundation for hauling heavy loads. Key features included in the factory heavy-duty towing package (Z82) are: Engine oil cooler: Keeps the engine running at optimal temperatures when under a heavy load. Transmission oil cooler: Prevents the automatic transmission from overheating during towing. Special trailering harness: Provides the necessary electrical connection to a trailer. Increased towing capacity: An Astro equipped with this package could tow up to 5,800 lbs with rear-wheel drive (RWD) in the cargo configuration. Other heavy-duty options related to the van's towing capabilities include: G80 Locking Rear Differential: This was a popular option that provided better traction in low-traction situations by mechanically locking the rear wheels together when slippage was detected. It was a no-cost option on some models. High Payload Capacity: The standard RWD passenger van could handle a payload of up to 1,764 pounds, and the cargo version could handle slightly more.