Sales incentive, price leader

Years 1986–90, 1998–99 Models 5 Factory citations 9

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Also described as Price leader pickup packageModel, Special

Also documented for Chevrolet

Documented applications

Sierra — GMT400 (1988–2000)

1998 Factory-verified internal

GM factory document — 1998 gmc gmc c pickup 2wd rpo code list, p.1.

Sierra — GMT800 (1999–2007)

1999 Factory-verified

GM factory document — 1999 gmc gmc c sierra 2wd rpo code list, p.1.

Sonoma — first generation (1982–1993)

1986–1990 Factory-verified

the economy model; the joint books print EL/Special, the Chevrolet and GMC names; shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits

GM Heritage factory kit — 1986 Chevrolet S 10, p.2.
GM Heritage factory kit — 1987 Chevrolet S 10, p.10.
GM Heritage factory kit — 1988 Chevrolet S 10, p.74.
GM Heritage factory kit — 1989 Chevrolet S 10, p.7.
GM Heritage factory kit — 1990 Chevrolet S 10, p.13.

Suburban — GMT400 (1992–1999)

1998 Factory-verified internal

GM factory document — 1998 gmc gmc suburban 2wd rpo code list, p.1.

Yukon — GMT400 (1992–1999)

1998 Factory-verified internal

GM factory document — 1998 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of X81 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.