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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1983SUBURBAN C20, 5.7 M, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL - THM 400COMPONENT DISASSEMBLY & REASSEMBLYOIL PUMPREASSEMBLY
1983 Chevrolet Suburban C20, 5.7 M, Standard
Oil Pump: Reassembly
1983 Chevrolet Suburban C20, 5.7 M, StandardSECTION Reassembly
- When installing front unit thrust washer, ensure it is proper thickness as determined at disassembly. See FRONT UNIT END PLAY CHECK in TRANSMISSION DISASSEMBLY . To reassemble remaining components, reverse disassembly procedure. Leave pump cover bolts one turn loose.
- Install Alignment Band (J-21368) to align cover and body. Tighten attaching bolts and remove alignment band. Install new square-cut "O" ring on pump. Install new pump oil seal on front of pump using Oil Seal Installer (J-21359).
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.