Axle, 3.50 final drive ratio

Years 2017, 2019, 2025–26 Models 2 Factory citations 6

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Also documented for Chevrolet

Documented applications

Envision — D2XX, imported from China (2016–2020)

2017, 2019 Factory-verified

2019: 1SV, 1SD, 1SL: S (the LCV models); the 2018 guide prints no axle ratio for them; GM Authority's 2020 page gives the 3.50 ratio without the code

GM factory document — 2017 buick envision order guide copy gm authority, p.5, p.20.
GM factory document — 2019 buick envision order guide copy gm authority, p.6, p.22.

Envista — VSS-F (2024–2027)

2025–2026 Factory-verified

all trims: S; GM Authority gives a 3.50 axle ratio for 2024 and 2027 without printing a code

GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2025 buick envista fleet order guide, p.6.
GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.6.

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