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For 1990-2009 cars only

D Height Specifications Missing from SI - kw adjust alignment frame position rear sag specification suspension

Subject: "D" Height Specifications Missing from SI

Models:.



When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

Condition/Concern:

Dealer technicians may call stating that they are unable to locate the D height specification for the GMT800 series based trucks.

Recommendation/Instructions:

The "D" height at curb specifications below are followed by a chart to help break down the model designator

C1500 03/53 166MM

K1500 03/53 171MM

C/K2500 03/53+C6P 205MM Veh equiped with 9.5" axle

C/K2500 03/53+C6P 203MM Veh equiped with 10.5" axle

C/K2500 03/53+C5F 204MM

C/K25906 134MM

C/K257 03/53 204MM

C/K259 03/43/53 HD 204MM

C/K35900 187MM

C/K3600 03/53 166MM Wrecker Prep

C/K3600 03/53+5X9 147MM

C/K1500 06 517MM Going from tip of shock bolt to tip of shock bolt

N2 w/RPO ZM6 132MM (5.2 in) +- 6MM (0.24 in)

N2 w/o RPO ZM6 140MM (5.5 in) +- 6MM (0.24 in)

At curb is with a full tank of fuel and vehicle unloaded. Tolerance for "D" height is +- 12MM

C - 4X2 15 - 1/2 TON 0 - CHASSIS CAB SHORT 03 - REGULAR CAB K - 4X4 25 - 3/4 TON 4-CHASSIS CAB MED 43 - CREW CAB 35 - 1 TON 8 - CHASSIS CAB LONG 53 - EXTENDED CAB 36 - 1 TON CHASSIS CAB 7 - 6 1/2' P/U BOX 06 - 4 DOOR UTILITY 9 - 8' P/U BOX

(EXAMPLES - K25906 = 4X4, 3/4 TON, SUBURBAN

- C25743 = 4X2, 3/4 TON, SHORT BOX, CREW CAB)

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

Models:

(99-04 Chevrolet Silverado, C1 C2 C3 K1 K2 K3) and (00-04 Chevrolet Tahoe, C1 K1) and (00-04 Chevrolet Suburban, C1 C2 K1 K2) and (02-04 Chevrolet Avalanche, C1 C2 K1 K2) and (99-04 GMC Sierra, C1 C2 C3 K1 K2 K3) and (00-04 GMC Yukon, C1 K1) and (00-04 GMC Yukon XL C1 C2 K1 K2) and (01-04 GMC Yukon Denali, K6) and (02-04 Cadillac Escalade, C6 K6) and (02-04 Cadillac Escalade EXT, K6) and (03 04 HUMMER H2))

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