Rewiring a 1991 Chevy Cheyenne: No Fixed Price — Inspection Required
There is no standard cost to rewire a 1991 Chevrolet Cheyenne (C/K 1500/2500/3500). The price depends entirely on what's damaged, what's being upgraded, and who does the work.
Cost Drivers
| Factor | Impact |
| Scope | Engine harness only? Full chassis? Add trailer wiring, ABS, AC, gauges? |
| Harness Type | OEM replacement ($300–800) vs. custom (Painless, American Autowire) $600–1,500+ |
| Labor | 40–100+ hours @ $100–150/hr = $4,000–15,000+ |
| Hidden Damage | Rodents, corrosion, previous hack jobs, firewall bulkhead rot |
| Upgrades | Modern fuse block, relays, LED lighting, trailer brake controller, EFI conversion |
Typical Scenarios
- Engine harness only (DIY parts): $300–600
- Engine harness (shop install): $1,200–2,500
- Full chassis rewire (custom harness, pro): $6,000–12,000+
- Restoration-grade (concours, documented): $15,000+
Before Committing
- Diagnose first: Scan codes, voltage drop test, continuity check — maybe only a section needs repair
- Get 3 written estimates from auto electric specialists (not general mechanics)
- Ask for itemized breakdown: Harness, connectors, terminals, loom, tape, labor hours
- Consider: Is the truck worth it? (Rust, frame, drivetrain condition)
Rewiring is open-heart surgery on a 30-year-old nervous system. Pay for expertise — or learn it yourself with a factory wiring manual, multimeter, and patience.