Chassis package, high performance

Years 1965, 2003–07, 2009, 2022–27 Models 7 Factory citations 20

Also described as Custom Equipment (combined comfort + appearance)Suspension Package, high capacityHigh-performance chassis packageSuspension Package, High Capacity

Also documented for GMC

Documented applications

C/K Trucks

1965 Factory-verified

GM Heritage factory kit — 1965 Chevrolet Truck, p.20.

Silverado 1500 — Fifth generation (2027)

2027 Factory-verified

GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet next generation silverado 1500 retail and fleet fleet order guide, p.13.

Silverado — GMT800 (1999–2007)

2003–2007 Factory-verified

the Silverado SS suspension in the 2003 and 2005 SS order guides

GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Silverado SS, p.208.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.58.

Silverado — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado — T1XX (2019–2026)

2022–2026 Factory-verified

GM factory document — 2022 chevrolet 22 silverado 1500 new electrical body builder 042822, p.15.
GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.16.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.19.
GM factory document — 2025 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

Suburban — T1XX (2021–2027)

2023, 2026 Factory-verified

GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.14.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.11.

Tahoe — T1XX (2021–2027)

2023, 2025–2027 Factory-verified

2027: RST: O

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.77.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.83.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.76.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.14.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.11.

This page aggregates every documented appearance of Z60 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.