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HOMESERVICE MANUALSGMC1991JIMMY 5.7 K, AUTOMATIC, 4L60/MD8REPAIR AND DIAGNOSISSUSPENSIONWHEEL ALIGNMENTWHEEL ALIGNMENT SPECIFICATIONS & PROCEDURESWHEEL ALIGNMENT SPECIFICATIONS

1991 GMC Jimmy 5.7 K, Automatic, 4L60/MD8

Wheel Alignment Specifications

1991 GMC Jimmy 5.7 K, Automatic, 4L60/MD8SECTION Wheel Alignment Specifications

WHEEL ALIGNMENT SPECIFICATIONS (ASTRO & SAFARI)

Application

Fraction

Decimal

Camber (Degrees) ⁽¹⁾

13/16 ± 1/2

(0.8 ± 0.5)

Caster (Degrees) ⁽¹⁾

2 11/16 ± 1/2

(2.7 ± 0.5)

Toe-in (Degrees)

3/16 ± 1/8

(.19 ± .13)

Toe-in (Inches)

3/32 ± 1/16

(.09 ± .06)

⁽¹⁾	Left and right adjustments must be within 0.5 degree of each other.

WHEEL ALIGNMENT SPECIFICATIONS ("C" SERIES)

Application

Fraction

Decimal

Camber (Degrees) ⁽¹⁾

1/2 ± 1/2

(0.5 ± 0.5)

Caster (Degrees) ⁽¹⁾

3 3/4 ± 1

(3.75 ± 1.0)

Toe-in (Degrees) ⁽²⁾

7/32 ± 13/64

(.24 ± 0.2)

⁽¹⁾	Left and right adjustments must be within 0.5 degree of each other.

⁽²⁾	Toe-in on left and right side must be set equally per wheel. Steering wheel must be held in straight-ahead position within plus or minus 5.0 degrees.

WHEEL ALIGNMENT SPECIFICATIONS ("K" SERIES)

Application

Fraction

Decimal

Camber (Degrees) ⁽¹⁾

K15/25

21/32 ± 1/2

(.65 ± 0.5)

K35

1/2 ± 1/2

(0.5 ± 0.5)

Caster (Degrees) ⁽¹⁾

3 ± 1

(3.0 ± 1.0)

Toe-in (Degrees) ⁽²⁾

7/32 ± 13/64

(.24 ± 0.2)

⁽¹⁾	Left and right adjustments must be within 0.5 degree of each other.

⁽²⁾	Toe-in on left and right side must be set equally per wheel. Steering wheel must be held in straight-ahead position within plus or minus 5.0 degrees.

WHEEL ALIGNMENT SPECIFICATIONS ("G", "P", "R" & "V" SERIES)

Application

Fraction

Decimal

Camber (Degrees)

G15/25

1/2 ± 1/2

(0.5 ± 0.5)

G35

1/4 ± 1/2

(.25 ± 0.5)

P35 (w/ FS3) ⁽¹⁾⁽²⁾

1 1/2 ± 1/2

(1.5 ± 0.5)

P35 (w/out FS3) ⁽¹⁾

3/32 ± 1/2

(0.1 ± 0.5)

P35 (w/ JB8 or JF9) ⁽¹⁾

3/32 ± 1/2

(0.1 ± 0.5)

R15

11/16 ± 1/2

(0.7 ± 0.5)

R25/35

1/4 ± 1/2

(.25 ± 0.5)

"V" Series ⁽²⁾

1 ± 1/2

(1.0 ± 0.5)

Caster (Degrees)

⁽³⁾

Toe-in

"G" Series (Degrees)

0 ± 3/16

(0.0 ± .19)

P35 (With FS3) ⁽¹⁾

Degrees

1/16 ± 1/8

(.07 ± .12)

Inches

1/8 ± 1/16

(.12 ± .06)

P35 (Without FS3) ⁽¹⁾

Degrees

3/8 ± 1/8

(.38 ± .13)

Inches

1/4 ± 1/16

(.18 ± .06)

P35 (With JB8 or JF9) ⁽¹⁾

Degrees

1/2 ± 1/8

(0.5 ± .12)

Inches

1/4 ± 1/16

(.25 ± .06)

"R" Series (Degrees)

3/16 ± 1/8

(.19 ± .13)

"R" Series (Inches)

3/32 ± 1/16

(.09 ± .06)

"V" Series (Degrees)

1/8 ± 1/8

(.13 ± .13)

"V" Series (Inches)

1/16 ± 1/16

(.06 ± .06)

⁽¹⁾	See Fig 1 for explanation of Regular Production Option (RPO) codes.

⁽²⁾	For reference only. No means of adjustment is provided.

⁽³⁾	See Fig 1 & 18 for caster specifications.

WHEEL ALIGNMENT SPECIFICATIONS (LUMINA APV, SILHOUETTE & TRANS SPORT)

Application

Fraction

Decimal

Camber (Degrees) ⁽¹⁾

0 ± 1/2

(0.0 ± 0.5)

Caster (Degrees)

1 11/16 ± 1

(1.7 ± 1.0)

Toe-in (Degrees)

0 ± 3/16

(0.0 ± .19)

⁽¹⁾	Left and right adjustments must be within .07 degree of each other.

WHEEL ALIGNMENT SPECIFICATIONS ("S" & "T" SERIES)

Application

Fraction

Decimal

Camber (Degrees) ⁽¹⁾

13/16 ± 1/2

(0.8 ± 0.5)

Caster (Degrees) ⁽¹⁾

2 ± 1/2

(2.0 ± 0.5)

Toe-in (Degrees) ⁽²⁾

5/16 ± 3/32

(.31 ± .09)

⁽¹⁾	Left and right adjustments must be within 0.5 degree of each other.

⁽²⁾	Toe in left and right side to be set separately per wheel and steering wheel must be held in straight ahead position within ± 5.0 degree.

WHEEL ALIGNMENT SPECIFICATIONS (SYCLONE)

Application

Fraction

Decimal

Camber (Degrees) ⁽¹⁾

3 1/2 ± 1/2

(3.5 ± 0.5)

Caster (Degrees) ⁽¹⁾

0 ± 1/2

(0.0 ± 0.5)

Toe-in (Degrees) ⁽²⁾

5/32 ± 2/32

(.16 ± .06)

⁽¹⁾	Left and right adjustments must be within 0.5 degree of each other.

⁽²⁾	Toe in left and right side to be set separately per wheel and steering wheel must be held in straight ahead position within ± 5.0 degree.

NOTE: For Measurement "BC", see Figure.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.