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 MANUALSCHEVROLET1986CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSTRANSMISSION AND DRIVETRAINSYSTEM SPECIFICATIONSMANUALDESIGN AND CLEARANCE SPECIFICATIONS
1986 Chevrolet Chevette L4-98 1.6L
Design and Clearance Specifications
1986 Chevrolet Chevette L4-98 1.6LSECTION Design and Clearance Specifications
These Transmissions Are Listed In This Article
5 SPEED 77MM RPO MB4
5 SPEED 69.5 mm RPO M75
CHEVETTE 4 SPEED 70MM RPO MY1
5 Speed 77mm Manual
GENERAL SPECIFICATIONS
Transmission Fluid
Type Engine Oil 5W- 30SF
Capacity Approx. 1.54L (3-1/4 Pints)
Gear Shifting Floor Mounted
Gear Ratios
1st 3.79 to I
2nd 2.18 to 1
3rd 1.42 to 1
4th 1.00 to 1
5th 0.86 to 1
Reverse 3.76 to 1
5 SPEED 77MM RPO MB4
TORQUE SPECIFICATIONS:
CHEVETTE 4 SPEED 70MM RPO MY1
Torque Specifications And Fluid Capacity Chart:
5 SPEED 69.5 mm RPO M75
Thrust Washer Thickness Chart:
General Specifications:
Snap Ring Chart:
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.