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"U" Series (Rear)

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  1. Lift rear bumper about 1.5" (38 mm). Gently remove hands and allow vehicle to settle on its own. Do this 2 more times. Measure and record dimensions "D" and "K". See Fig 10 .
  2. Push rear bumper down about 1.5" (38 mm). Gently remove hands and allow vehicle to rise on its own. Do this 2 more times. Measure and record dimensions "D" and "K" again. See Fig 10 . To obtain ride height, average the high and low measurements.
  3. If ride height is not as specified, repair or replace suspension components as necessary. See RIDE HEIGHT SPECIFICATIONS  table. If ride height is okay, align wheels. See WHEEL ALIGNMENT PROCEDURES  .
Fig 1: Measuring Ride Height ("A" & "B" Series)
G00005694Courtesy of GENERAL MOTORS CORP.
Fig 2: Measuring Front Ride Height ("C", K" & "L" Series)
G90J04489Courtesy of GENERAL MOTORS CORP.
Fig 3: Measuring Front Ride Height ("G" Series)
G90H04488Courtesy of GENERAL MOTORS CORP.
Fig 4: Measuring Rear Ride Height ("G" Series Without Auxiliary Springs)
G99F03384Courtesy of GENERAL MOTORS CORP.
Fig 5: Measuring Rear Ride Height ("G" Series With Auxiliary Springs)
G99D03383Courtesy of GENERAL MOTORS CORP.
Fig 6: Measuring Ride Height ("J/E" Series)
G00005692Courtesy of GENERAL MOTORS CORP.
Fig 7: Measuring Rear Ride Height ("L" & "M" Series Shown)
G99A03386Courtesy of GENERAL MOTORS CORP.
Fig 8: Measuring Front Ride Height ("M" & "S" Series)
G95J27077Courtesy of GENERAL MOTORS CORP.
Fig 9: Measuring Ride Height ("T" Series)
G95A27078Courtesy of GENERAL MOTORS CORP.
Fig 10: Measuring Ride Height ("U" Series)
G97J03526Courtesy of GENERAL MOTORS CORP.
RIDE HEIGHT SPECIFICATIONS

Application In. (mm)
"A" & "B" Series
AWD With 215/65R16 Tires
Dimension "Z" 2.1-2.9 (55-75)
Dimension "D" 3.4-4.2 (87-107)
Dimension "J" 9.4-10.2 (240-260)
Dimension "K" 9.8-10.6 (251-271)
AWD With 215/70R16 Tires
Dimension "Z" 2.1-2.9 (55-75)
Dimension "D" 3.4-4.2 (87-107)
Dimension "J" 9.8-10.6 (251-271)
Dimension "K" 10.7-11.4 (272-292)
2WD With 215/70R15 Tires
Dimension "Z" 2.1-2.9 (55-75)
Dimension "D" 5.6-6.4 (143-163)
Dimension "J" 9.3-10.1 (237-257)
Dimension "K" 10.2-11.0 (260-280)
2WD With 215/65R16 Tires
Dimension "Z" 2.1-2.9 (55-75)
Dimension "D" 5.6-6.4 (143-163)
Dimension "J" 9.4-10.2 (240-260)
Dimension "K" 10.3-11.1 (263-283)
2WD With 215/70R16 Tires
Dimension "Z" 2.1-2.9 (55-75)
Dimension "D" 5.6-6.4 (143-163)
Dimension "J" 9.8-10.6 (251-271)
Dimension "K" 10.7-11.5 (274-294)
"C" & "K" Series
Front
New Style
2WD & 4WD 4.4-4.8 (110-122)
Old Style
2WD 3.5-4.0 (89-101)
4WD (Except K10906 Or K20906) 5.9-6.4 (151-163)
4WD (K10906 Or K20906) 5.5-5.9 (139-151)
"G" Series
Front 3.50-3.98 (89-101)
Rear (1)
With Auxiliary Springs 4.75-5.75 (120.4-146.4)
Without Auxiliary Springs 3.75-4.75 (95-121)
"J/E" Series
2WD 2-Door
Dimension "J" 8.31 (211)
Dimension "K" 8.90 (226)
Dimension "Z" 4.02 (102)
Dimension "D" 7.28 (185)
2WD 4-Door
Dimension "J" 8.27 (210)
Dimension "K" 8.90 (226)
Dimension "Z" 4.02 (102)
Dimension "D" 7.28 (185)
4WD 2-Door
Dimension "J" 8.58 (218)
Dimension "K" 9.17 (233)
Dimension "Z" 4.02 (102)
Dimension "D" 7.28 (185)
4WD 4-Door
Dimension "J" 8.54 (217)
Dimension "K" 9.17 (233)
Dimension "Z" 4.02 (102)
Dimension "D" 7.28 (185)
"L" & "M" Series
AWD 5.1-5.4 (129.5-13.2)
2WD 2.9-3.4 (73.7-86.4)
"S" & "T" Series
Dimension "Z"
2WD (Except ZQ8 Suspension) 2.6-3.1 (67-79)
2WD (ZQ8 Suspension) 2.5 (64)
4WD (Except ZR2 Suspension) 4.6-5.0 (116-128)
4WD (ZR2 Suspension) 4.6-5.2 (116.8-132.1)
Dimension "D"
Utility 5.1-5.8 (130-148)
Pickup (Except ZQ8 Suspension) 5.1-6.4 (131-162)
Pickup (ZQ8 Suspension) 4.8 (122)
"U" Series
Standard Wheel Base With 205/70R15 Tires
Dimension "Z" (2) 2.28-3.07 (58-78)
Dimension "D" (2) 5.23-6.02 (133-153)
Dimension "J" (2) 8.97-9.76 (228-248)
Dimension "K" (2) 9.84-10.62 (250-270)
Standard Wheel Base With 215/70R15 Tires
Dimension "Z" (2) 2.28-3.07 (58-78)
Dimension "D" (2) 5.23-6.02 (133-153)
Dimension "J" (2) 9.25-10.03 (235-255)
Dimension "K" (2) 10.15-10.94 (258-278)
Long Wheelbase (VIN X)
Dimension "Z" (2) 2.28-3.07 (57.91-77.98)
Dimension "D" (2) 5.47-6.25 (139-159)
Dimension "J" (2) 9.21-10.00 (234-254)
Dimension "K" (2) 10.07-10.86 (256-276)
Long Wheelbase Cargo Van Without Automatic Level Control
Dimension "Z" (2) 2.28-3.07 (58-78)
Dimension "D" (2) 6.53-7.32 (166-186)
Dimension "J" (2) 9.44-10.23 (240-260)
Dimension "K" (2) 10.98-11.77 (279-299)
Long Wheelbase Cargo Van With Automatic Level Control
Dimension "Z" (2) 2.28-3.07 (58-78)
Dimension "D" (2) 5.78-6.57 (147-167)
Dimension "J" (2) 9.29-10.07 (236-256)
Dimension "K" (2) 10.35-11.14 (263-283)
(1) Side to side difference should not exceed 0.5" (13 mm). See "G" SERIES (REAR)  under RIDE HEIGHT.
(2) No passengers, no luggage and fuel tank full. See Fig 10 .
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