1998: Sierra SLE; 8Cyl 6.2L;
1998: Sierra SLX; 6Cyl 4.3L;
1998: Sierra SLX; 8Cyl 5.0L;
1998: Sierra SLX; 8Cyl 5.7L;
1998: Sierra SLX; 8Cyl 6.2L;
1998: Sierra SLE; 6Cyl 4.3L;
1998: Sierra SLE; 8Cyl 5.0L;
1998: Sierra SLE; 8Cyl 5.7L;
1998: Sierra SL; 8Cyl 6.5L;
1998: Sierra SLE; 8Cyl 6.5L;
1998: Sierra SLT; 8Cyl 6.5L;
1998: Sierra Special; 8Cyl 6.5L;
1998: Sierra SL; 6Cyl 4.3L;
1998: Sierra SL; 8Cyl 5.0L;
1998: Sierra SL; 8Cyl 5.7L;
1998: Sierra SLT; 6Cyl 4.3L;
1998: Sierra SLT; 8Cyl 5.0L;
1998: Sierra SLT; 8Cyl 5.7L;
1998: Sierra Special; 6Cyl 4.3L;
1998: Sierra Special; 8Cyl 5.0L;
1998: Sierra Special; 8Cyl 5.7L;
1998: Sierra GT; 6Cyl 4.3L;
1998: Sierra GT; 8Cyl 5.0L;
1998: Sierra GT; 8Cyl 5.7L;
1998: Sierra GT; 8Cyl 6.5L;