Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1991SUBURBAN 1/2 TON 4WD V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSAUTOMATIC TRANSMISSION/TRANSAXLESYSTEM SPECIFICATIONS4L60/4L60-E (700-R4) AUTOMATIC TRANSMISSIONTIGHTENING SPECIFICATIONS
1991 Chevrolet Suburban 1/2 Ton 4WD V8-350 5.7L
Tightening Specifications
1991 Chevrolet Suburban 1/2 Ton 4WD V8-350 5.7LSECTION Tightening Specifications
FASTENER TORQUE SPECIFICATIONS
Shift Linkage 25 Nm (19 lbs. ft.)
TV Cable 10 Nm (7 lbs. ft.)
Cooler Lines to Transmission 22 Nm (16 lbs. ft.)
Cooler Lines to Radiator 27 Nm (20 lbs. ft.)
Transmission Support Braces 95 Nm (70 lbs. ft.)
Dampener Support 41 Nm (30 lbs. ft.)
Dampener to Support 87 Nm (65 lbs. ft.)
Converter Housing Cover 35 Nm (25 lbs. in.)
Transmission to Engine 47 Nm (34.5 lbs. ft.)
Converter to Flywheel 65 Nm (50 lbs. ft.)
Flywheel to Crankshaft Bolts 100 Nm (74 lbs. ft.)
Crossmember to Frame 70 Nm (52 lbs. ft.)
Accumulator Cover to Case (M6-1.0 x 35.0) 11 Nm (97 lbs. in.)
Detent Spring to Valve Body 22 Nm (18 lbs. ft.)
Valve Body to Case 11 Nm (97 lbs. in.)
Oil Passage Cover to Case 11 Nm (97 lbs. in.)
Solenoid Assembly to Pump 11 Nm (97 lbs. in.)
Transmission Oil Pan to Case 11 Nm (97 lbs. in.)
Pressure Switches 11 Nm (97 lbs. in.)
Auxiliary Valve Body to Case 11 Nm (97 lbs. in.)
Case Extension to Case 34 Nm (26 lbs. ft.)
Manual Shaft to Inside Detent Lever 31 Nm (23 lbs. ft.)
Pressure Plugs (1/4-27) 11 Nm (97 lbs. in.)
Pressure Plugs (1/4-18) 24 Nm (18 lbs. ft.)
Connector Cooler Pipe 38 Nm (28 lbs. ft.)
RENDER: 1.0x
NO RELATED
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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.