Suburban 3/4-Ton (1973-1991)

Product Overview & Specifications

• In Stock for Suburban 3/4-Ton Heavy-Duty Use
• Free Shipping All 50 States, 5-10 Business Day Transit (heavy item)
• Suburban 20 1973-1991 3/4-Ton Pre-GMT400 Era
• C20 2WD or K20 4WD Configurations Both Covered
• Both Chevrolet and GMC Suburban Versions (same platform different badging)
• 3rd-4th Generation ‘Square Body’ Iconic Era 1973-1991
• GM Longest Continuous Nameplate 1935+ (90+ Years 14+ Generations)
• Naming Convention: Suburban 10 = 1/2-Ton (Batch 58 vaz532), 20 = 3/4-Ton (this), 30 = 1-Ton (Batch 56 vaz518)
• GMT400 1992+ Adopted 1500/2500/3500 (Batch 56 vaz517)
• Engines: 350 V8 famous GM small block 1955-2003
• 454 V8 Big Block 7.4L heavy towing (Batch 56 vaz518)
• 6.2L Detroit Diesel V8 optional (130-148 HP, 18-22 MPG with towing)
• 305 V8 lighter applications
• TH400 Heavy-Duty 3-Speed Automatic STANDARD (Batch 56 vaz517)
• TH350, 700R4 (late 1980s+), NV4500/SM465 manuals alternatives
• K20 4WD with NP205 Heavy-Duty Transfer Case (famous reliability)
• Dana 60 Solid Front Axle K20 (Batch 56 vaz518)
• Payload ~2, 000 lbs, Towing ~7,500-10,000 lbs heavy-duty
• Applications: Heavy family hauler with towing, work, government/military CUCV, off-road
• Skid Plate Function: Transfer case (primary K20), fuel tank, engine, transmission protection
• Heavy Steel 1/8 to 1/4 inch, welded/bolted brackets, drain holes
• Often multiple plates cover different areas
• Common Failures: Impact damage (doing its job), rust, missing hardware, cracked welds
• Plate Intact Verified, Mounting Functional, Donor Disclosed
• 100% Inspection Before Every Order Ships
• Good Salvage Donor Pool (19-Year Production + Chevy/GMC Cross-Compatibility)
• 15 Day Replacement Warranty