I created this page to help anyone that is interested in 73 through 87 Chevy trucks, I hope that it is helpful. This information and page may be printed for your personal use, but may not be copied or reproduce without the permission of the page's owner/creator. The page owner/creator has no affiliation to GM or any products they produce. The information contain within is a accumulated knowledge that I've gained over the years, therefor I can not guarantee the accuracy of this information.
  I've set up this page to cover C and K models, starting with 1973 as the base with the optional equipment offered at that time. Then all subsequent years I've tried to note the major design changes in appearance items. I've also tried to capture the optional equipment that was added for that particular year, I've tried to list most of the options, but I know that there are many not listed. It would take an extensive list, to note all the different options, nor do I try to list the dealership installed options. If you see anything that is in error, please e-mail me, I'm not a professional web page designer, just a guy that loves his chevy trucks. Enjoy!!


1973
The beginning: The 1973 truck line was a drastic change in body style from previous years, it was such a successful design that it was basically used up until 1987, then another radical changed occurred. Other than the obvious changes for the body, their were some mechanical changes as well, C10 models had their rear coil springs replaced with leaf, four-wheel drives (K models) received longer springs all around, and the Full Time 4 wheel drive was introduced.
Engine:
Standard
  250 cid - C10 & K10
  292 cid - C20, C30, K20 & k30
 Optional
  292 cid - C10 & K10
  350 cid - C10, C20, C30, K10, K20 & K30
  454 cid - C10, C30 & C30
Options available: Radio AM or AM/FM, gauges, clock, tachometer, Tilt wheel, power steering, A/C, limited slip rear end, Auxiliary fuel tank, Sliding rear window, Cargo lamp, Below-eye-line mirrors, chrome front bumper, chrome rear bumper, wheel covers, wood grain exterior, rally wheels, slide out spar tire carrier.
Model description:
Custom
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Custom Deluxe
Everything offered in the Custom package plus: thicker padded seat, folding seat, wood grain insert in door panels, color keyed floor mat, cigar lighter, bright trim in window molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the custom deluxe package plus: Wood grain insert in door panels, door pockets, headliner, carpet, dome light, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué, chrome bumper and hubcaps.
Cheyenne super
Everything offered in the Cheyenne package plus: Wood grain gauge bezel, full-size kick panels, full tailgate appliqué and full gauge instrumentation.

1974

New Changes: Virtually nothing changed from the previous year.
Engine: No changes
Options added: No new options
Models available:
Custom
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Custom Deluxe
Everything offered in the Custom package plus: thicker padded seat, folding seat, wood grain insert in door panels, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, wood grain insert in door panels, door pockets, headliner, carpet, cigar lighter, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué, chrome bumper and hubcaps.
Cheyenne super
Everything offered in the Cheyenne package plus: Wood grain gauge bezel, full-size kick panels, full tailgate appliqué and full gauge instrumentation.

1975

New changes: The front nose was changed, the headlight bezels were painted gray instead of black, front turn signals lens changed from amber to clear and the Grille was revised. The HEI was introduced, and the Auxiliary tank switch was moved to the dash, for trucks equipped.  The Custom and Cheyenne Super packages were dropped and the Scottsdale and Silverado packages were added.
Engine: 400 cid offered on K10, K20 & K30
Options added: Optional Front and Rear bumpers with impact strip, cruise control and fresh air duct going from air breather to core support was offered.
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, wood grain insert in door panels, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the Scottsdale package plus: tigerwood woodgrain door panel insert, door pockets, carpeting, headliner, bright metal cab molding,upper/lower body side and tailgate molding, center tailgate appliqué
Silverado
Everything offered in the Cheyenne package plus: Full gauge instrumentation, tigerwood woodgrain gauge bezel, full kick panels and full tailgate appliqué.

1976

New changes: Virtually nothing change from the 75 models, except the grille emblem indicating engine size was deleted, and the instrument panel was revised, the amp meter was replaced by a voltmeter and the speedometer had KM/H added in light blue. The fuel gauge face also changed, blue graphics were added to match the new speedometer graphics.
Engine: No changes
Options added: Special trim package for the 61/2' stepside's, choice of four solid color with stripes.
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, wood grain insert in door panels, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the Scottsdale package plus: tigerwood woodgrain door panel insert, door pockets, carpeting, headliner, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué
Silverado
Everything offered in the Cheyenne package plus: full gauge instrumentation, tigerwood gauge bezel, full kick panels and full tailgate appliqué.
1977

New changes: The grille was changed again, and the trim inlay color was changed from black to yellow. The interior door panels were revised and for the Cheyenne and the Silverado packages, the tigerwood wood grain was replaced with chestnut wood grain.
Engine: 305-2 cid offered on C10
Options added: Power windows, power door locks, hood emblem, hood lock, exterior decor package (fleetside only, caries secondary color to the hood, with strips), and the "CHEVY SPORT" decor package (fleetside/stepside short bed only, special hood and side striping with CHEVY SPORT lettering).
Models available:
 Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the Scottsdale package plus: chestnut wood grain door panel insert, door pockets, carpeting, headliner, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué
Silverado
Everything offered in the Cheyenne package plus: full gauge instrumentation, chesnut woodgrain dash bezel, full kick panels, lower door carpet and full tailgate appliqué.

1978


New changes: This year line up stayed pretty close to 77 except the trim inlay color was changed back to black, and the chestnut wood grain was replaced with brushed aluminum. Steering wheel was revised, a bigger horn button was incorporated, and the mechanical oil pressure gauge was replaced with an electric unit, windshield wiper switch was changed, to accommodate new option.
Engine: No changes
Options added: Wiper delay offered.
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué
Silverado
Everything offered in the Cheyenne package plus: full gauge instrumentation, full kick panels, lower door carpet, brushed aluminum gauge bezel and dash insert and full tailgate appliqué.
1979

New changes: Front nose was revised, grille changed and the headlight bezels were changed to incorporate a panel under the grille between the bezels, fuel doors were added.
Engine: No changes
Options added: No new options
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué
Silverado
Everything offered in the Cheyenne package plus: full gauge instrumentation, full kick panels, lower door carpet, brushed aluminum gauge bezel and dash insert and full tailgate appliqué.
1980

New changes: The grille was revised and the headlights were changed from round to square, the turn signal was moved directly under the headlamp and the seat angle was modified for better comfort..
Engine: No changes
Options added:  No new options
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, spear type body molding, chrome bumper and hubcaps.
Cheyenne
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, bright metal cab molding, upper/lower body side and tailgate molding, center tailgate appliqué
Silverado
Everything offered in the Cheyenne package plus: full gauge instrumentation, full kick panels, lower door carpet, brushed aluminum gauge bezel and dash insert and full tailgate appliqué.
1981

New changes: This year kicked off with the most major changes since the 1973. A new aerodynamic front clip ws designed, a narrow hood and fenders were added, a redesigned bumper with turn signal added, double square headlights were included with front change. The classic chrome side molding was replaced with a single molding, on vehicles equipped. Interior was also changed, a new squarish dash and matching door panels were incorporated and seat belts were changed.
Engine: The 305 was now offered for the K10 models.
Options added: A resume feature added to cruise control.
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.
1982

New changes: No notable changes.
Engine: No changes
Options added: none
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.

1983

New changes: Grille changed, it was blackened out with a center bar having matching body color added , turn signal moved from bumper to grille.
Engine: No changes
Options added: none
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.

1984

New changes: Headlamp switch was moved from dash to the steering column.
Engine: No changes
Options added: Halgon lights, dual paint and dual paint with stripe package.
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.

1985

New changes: No notable changes.
Engine: No changes
Options added: none
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.

1986

New changes: No notable changes.
Engine: No changes
Options added: none
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.

1987

New changes: No notable changes.
Engine: Carburation was gone and the all engines were EFI.
Options added: none
Models available:
Custom Deluxe
Interior: vinyl bench seat, plain door panels, and black rubber floor mat. Exterior: black rubber window moldings, white painted front bumper and hubcaps.
Scottsdale
Everything offered in the custom deluxe package plus: thicker padded seat, folding seat, color keyed floor mat, cigar lighter, bright trim in window molding, black side body molding and tailgate molding, chrome and rear bumpers and hubcaps.
Silverado
Everything offered in the Scottsdale package plus: brushed aluminum door panel insert, silver painted gauge bezel and dash insert, door pockets, carpeting, headliner, custom steering wheel, visor mirror, bright metal cab molding, chrome body side and tailgate molding.


 
 
 
 
 
 
 
 
 
 
 
 

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