Model  | Option  | Service Allowed  | Service Preferred  | 
|---|---|---|---|
Z Trim Height: Models with torsion bar suspension must be adjusted before aligning the vehicle.  | |||
C/K 1500 Tahoe/Yukon  | w/o Z75, PPV, QSS  | 110-122 mm (4.3-4.8 in)  | 116 mm (4.5 in)  | 
K 1500 Escalade  | w/o QSS  | 110-122 mm (4.3-4.8 in)  | 116 mm (4.5 in)  | 
C/K 1500 Suburban, Yukon XL  | w/o Z75, PPV, QSS w/LTJ, LTZ  | 110-122 mm (4.3-4.8 in)  | 116 mm (4.5 in)  | 
C/K 1500 Avalanche/Escalade EXT  | All  | 110-122 mm (4.3-4.8 in)  | 116 mm (4.5 in)  | 
C 1500 Escalade  | w/Z75  | 100-122 mm (3.9-4.8 in)  | 106 mm (4.1 in)  | 
C 1500 Tahoe  | w/PPV  | 90-102 mm (3.5-4.0 in)  | 96 mm (3.7 in)  | 
K 1500 Escalade, Escalade ESV, Yukon XL  | w/QSS, Z75, Z88  | 90-102 mm (3.5-4.0 in)  | 96 mm (3.7 in)  | 
K 1500 Tahoe, Yukon  | w/QSS  | 90-102 mm (3.5-4.0 in)  | 96 mm (3.7 in)  | 
C/K 2500 Suburban, Yukon XL, Avalanche  | All  | 110-122 mm (4.3-4.8 in)  | 116 mm (4.5 in)  |