Explore Chevrolet and GMC truck stories through plain-language guides, original paperwork and factory references. The 1976 pilot anchors our growing 1973–1987 research; the links below cover only the years and topics published so far. Each guide explains its scope, sources and remaining questions.
Browse by research topic
Glossary
Start with Square Body Language: A Beginner’s Guide
VIN & paperwork
Explore VIN, SPID, and build-sheet research
Option codes & factory specifications
Read the 1976 Chevrolet Truck RPO and Option Guide
What Came With the Comfort: GMC’s 1981 Option List
A Little Shine Was Standard: GMC’s 1985 Exterior Trim
GMC’s 1973 Safety Pitch Went Right Down to the Knobs
1983 GMC pickups: standard features and available accessories. Wondering what came with Sierra, High Sierra or Sierra Classic? The GMC Pickups brochure, form ADV 83-1, has a standard-feature chart on page 17. Read it alongside the available accessories on page 16: a dash in the standard-feature chart does not, by itself, mean an item could not be ordered. Keep the printed cab, body and model qualifications with each entry. This brochure is separate from the Canadian GM-4366 edition and is not a complete dealer ordering guide.
Same Trim, Different Cab: The Small Details in GMC’s 1983 Pickups
Two C-2500s on One Page: GMC’s 1986 Suspension Choices
Accessories & aftermarket equipment
1976 Chevrolet accessories: six part-number listings
Jet Hoist: a 1976 aftermarket pickup offloader
Engine, transmission & axle identification
Read the 1976 Chevrolet Pickup Powertrain Guide
GMC’s Half-Ton Diesel Sales Pitch
Paint & upholstery
Read the 1976 Chevrolet Pickup and Blazer Paint and Upholstery Reference
Canadian & Oshawa trucks
Explore 1976 Canadian and Oshawa Trucks
Special editions
Explore documented special-edition findings
Folklore & claims
Explore Folklore & Claims: truck stories and competition photographs
Published notes by year and topic
These year-specific research notes cover questions across multiple model years. They are not complete year guides, and they do not change the 1976 focus of our vehicle registry.
- 1979 and 1980 Chevrolet regular-cab two-tone interiors
- 1985 Chevrolet Outdoorsman sales offer
- 1987 R/V and 1988 C/K identification
- 1986 GMC Gold Medal program: the February revision
- GMC factory and dealer accessory evidence: 1980 and 1985 examples
- A 350 is only the beginning of the story
- Four doors, two different stories
- Following the fine print in the 1975 GMC engine table
- Two documents, one missing link
- Three numbers, one small turn
- An upholstery code needs its year
- When the factory pages disagree
- 1980 Chevy Sport: One Name, Two Pickup Bodies
- What went into a 1986 Camper Special?
- Why GQ1 Alone Cannot Tell You the Axle Ratio: Chevrolet’s 1983 High-Altitude Orders
- The Spare Tire That Still Needed an Order
- 1979 Chevrolet 305: three distributor numbers, four application branches
Dealerships, parts and paperwork
What two Chevrolet SPID labels tell us
Who made a 1976 C10 or K10 part?
When the factory numbers don’t quite add up
What a torn build sheet still tells us
Special paint, but which color?
Search factory documents
Look up Chevrolet and GMC truck options, parts and specifications, with links to the original factory references.
Truck document records
Read selected photographed-document findings, organized by source-attributed model year. Documentary readings are not authentication of originality.
- 1973 Chevrolet and GMC document records
- 1974 Chevrolet and GMC document records
- 1975 Chevrolet and GMC document records
- 1977 Chevrolet and GMC document records
- 1978 Chevrolet and GMC document records
- 1979 Chevrolet and GMC document records
- 1980 Chevrolet and GMC document records
- 1981 Chevrolet and GMC document records
- 1982 Chevrolet and GMC document records
- 1983 Chevrolet and GMC document records
- 1984 Chevrolet and GMC document records
- 1985 Chevrolet and GMC document records
- 1986 Chevrolet and GMC document records
- 1987 Chevrolet and GMC document records
- 1988 Chevrolet document records
- Truck documentary specimens
Sources & research methods
Research Sources/Documentation
How RareTruckInfo Research Works
Using Chevrolet’s 1976 service manuals
The 1976 Chevrolet 10–30 Series book is a supplement. Its foreword says it accompanies the 1974 service and overhaul manuals and directs readers to a separate wiring booklet. The older dates are part of the intended reference set.
| Document | Role in the set |
|---|---|
| 1976 supplement, ST-330-76 | Read the relevant service or overhaul section for its 1976 changes and references to the base books. Preserve any exceptions printed in that section. |
| 1974 Truck Chassis Service Manual, ST-330-74 | The base truck-service reference used where the 1976 supplement carries its information forward. |
| 1974 Overhaul Manual, ST-333-74 | Major-component disassembly and assembly. This book also covers Chevrolet passenger cars, so check the component and truck application of the section. |
Wiring is separate. The 1976 foreword names Truck Wiring Diagram booklet ST-352-76. Our wiring-source note identifies a five-page C/K extract: its cover and A-4724 Sheets 1–4. That selection does not represent the complete all-model booklet.
Record the section as well as the page. Service and overhaul sections can repeat printed page numbers. A useful citation names the book, the service or overhaul half, the printed page when present and the PDF page. A page added to the 1976 supplement does not by itself establish that its component was introduced in 1976.
Sources: Chevrolet Motor Division, ST-330-76, unnumbered foreword/index, PDF 5; ST-330-74, unnumbered title/index, PDF 3; ST-333-74, unnumbered title/foreword, PDF 5. The 1976 supplement’s section-specific references and exceptions remain controlling within their stated applications.