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"U" Series (Rear)

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  1. Lift front 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 front 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 Front Ride Height ("C" & "G" Series)
G90H04488Courtesy of GENERAL MOTORS CORP.
Fig 2: Measuring Rear Ride Height (1999 Sierra/Silverado C1500 & C2500)
G99C03387Courtesy of GENERAL MOTORS CORP.
Fig 3: Measuring Rear Ride Height ("L" & "M" Series)
G99A03386Courtesy of GENERAL MOTORS CORP.
Fig 4: Measuring Rear Ride Height ("G" Series Without Auxillary Springs)
G99F03384Courtesy of GENERAL MOTORS CORP.
Fig 5: Measuring Rear Ride Height ("G" Series With Auxillary Springs)
G99D03383Courtesy of GENERAL MOTORS CORP.
Fig 6: Measuring Front Ride Height ("K" & "L" Series, 1999 Sierra & Silverado C1500 & 2500 Series)
G90J04489Courtesy of GENERAL MOTORS CORP.
Fig 7: Measuring Front Ride Height ("M" & "S" Series)
G95J27077Courtesy of GENERAL MOTORS CORP.
Fig 8: Measuring Ride Height (1998 Tracker)
G99G03389Courtesy 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)
"C" Series
Except 1999 Sierra/Silverado C1500 & C2500 3.5-4.0 (88.9-101.6)
1999 Sierra/Silverado C1500 & C2500
RWD C1500 3.6 (91.44)
RWD C2500 3.7 (94)
4WD C1500/C2500 4.4-4.8 (111.76-121.92)
"G" Series
Front 3.46-3.94 (87.88-100.07)
Rear(1)
With Auxillary Springs 4.75-5.75 (120.65-146.05)
Without Auxillry Springs 3.75-4.75 (95.25-120.65)
"K" Series
K1 & K2 5.9-6.4 (149.86-162.56)
K3 5.5-5.9 (139.7-149.86)
"L" & "M" Series
2WD 2.9-3.4 (73.66-86.36)
AWD 5.1-5.4 (129.54-13.16)
"P" Series (2)
"S" Series
Dimension "Z"
RWD 2.6-3.1 (66.04-78.74)
4WD (Ex. ZR2 Suspension) 4.6-5 (116.84-127)
4WD (ZR2 Suspension) 4.6-5.2 (116.84-132.08)
Dimension "D"
Utility 5.1-5.8 (129.54-147.32)
Pickup 5.1-6.4 (129.54-162.56)
"T" Series 4.6-5.0 (116.84-127)
Tracker(4)
Dimension "Z" 3.60 (91)
Dimension "D" 8.35 (212)
Dimension "J"
2WD 11.10 (282)
4WD 11.85 (301)
Dimension "K"
2WD 11.93 (303)
4WD 12.68 (322)
"U" Series (1998)
Long Wheel Cargo Van
Venture (Long Wheelbase, Cargo Van)
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 6.54-7.32 (166.12-185.93)
Dimension "J" (3) 9.45-10.24 (240.03-260.09)
Dimension "K" (3) 10.98-11.77 (278.89-298.96)
Silhouette & Trans Sport (Long Wheelbase, Cargo Van)
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 5.47-6.26 (138.94-159.0)
Dimension "J" (3) 9.21-10.0 (233.93-254.0)
Dimension "K" (3) 10.03-10.83 (254.76-275.08)
All Short Wheelbase With 205-70-R15 Tires
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 5.24-6.02 (133.1-152.91)
Dimension "J" (3) 8.98-9.76 (228.1-247.9)
Dimension "K" (3) 9.80-10.59 (248.92-268.2)
All Short Wheelbase With 215-70-R15 Tires
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 5.24-6.02 (133.1-152.91)
Dimension "J" (3) 9.25-10.04 (234.95-255.02)
Dimension "K" (3) 10.08-10.87 (256.03-276.1)
"U" Series (1999)
Long Wheelbase Non-Cargo Van
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 5.47-6.25 (138.94-158.75)
Dimension "J" (3) 9.21-10.0 (233.93-254.0)
Dimension "K" (3) 10.07-10.86 (255.78-275.84)
Long Wheelbase Cargo Van With Automatic Level Control
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 6.53-7.32 (165.86-185.93)
Dimension "J" (3) 9.29-10.07 (235.97-255.78)
Dimension "K" (3) 10.35-11.14 (262.89-282.96)
Long Wheelbase Cargo Van Without Automatic Level Control
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 6.53-7.32 (165.86-185.93)
Dimension "J" (3) 9.44-10.23 (239.78-259.84)
Dimension "K" (3) 10.98-11.77 (278.89-298.96)
Short Wheelbase With 205-70-R15 Tires
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 5.23-6.02 (132.84-152.91)
Dimension "J" (3) 8.97-9.76 (227.84-247.90)
Dimension "K" (3) 9.84-10.62 (249.94-269.75)
Short Wheelbase With 215-70-R15 Tires
Dimension "Z" (3) 2.28-3.07 (57.91-77.98)
Dimension "D" (3) 5.23-6.02 (132.84-152.91)
Dimension "J" (3) 9.25-10.03 (234.95-254.76)
Dimension "K" (3) 10.15-10.94 (257.81-277.88)
(1) Side to side difference should not exceed .5" (13 mm). See "G" SERIES (REAR)  under RIDE HEIGHT.
(2) Information is not available.
(3) No passengers, no luggage and fuel tank full. See Fig 10 .
(4) 1999 Information is not available.
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