GM Service Manual Online
For 1990-2009 cars only

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)