Product Description
1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket Seat Belt Kit
- Driver and passenger bucket seats
- Three-point retractable lap and shoulder belts
- All metal push button buckles
GMC square-body crew cabs from 1978-1991 with front buckets are covered by this Seatbelt Planet pair, two retracting lap and shoulder belts with all metal push buttons.
Fitment Notes
Front buckets in 1978-1991 GMC crew cab pickups.
Available Colors
GMC bucket straps are offered in 52 colors.
Why New Belts Matter
GMC crew cabs with buckets were often Sierra Classic trucks, and their belts now show decades of use.
Keeping Them Like New
Clean the GMC straps with mild soap and dry them out of the reel.
About the GMC Crew Cab Pickup
GMC's crew cab used the long-running square-body cab, sold alongside the newer GMT400 Sierra from 1988 through 1991.
Pre-Install Checklist
Confirm your GMC has front buckets before ordering.
Good to Know
Hardware is not stated.
High Sierra and Sierra Classic trims were the GMC equivalents of Chevrolet's upscale trims.
A matched pair keeps both GMC buckets consistent.
Call 574-226-6676 with GMC crew cab questions.
GMC's crew cab pickups used the same square-body cab as Chevrolet but wore their own grilles, badges and trim names through 1991.
Buckets in a GMC crew cab were more common on higher trims, and the inboard buckles usually mount near the center console.
GMC crew cabs with the 454 V8 were popular for towing travel trailers and horse trailers, often running high miles.
For 1987 GMC switched to throttle body fuel injection on its gasoline V8s, which many owners consider a reliability improvement.
Sierra Grande was another GMC trim name used in the late 1970s on square-body trucks.
The GMC 3500 one-ton crew cab with dual rear wheels is one of the most recognized square-body configurations today.
Measure the stalk length of the original GMC bucket buckles before ordering.
Tan, blue, gray and red webbing suit many GMC interiors from the 1980s.
Ordering the pair keeps both GMC belts in the same color and buckle style.
Square-body GMC crew cabs have strong collector interest, especially four-wheel drive trucks.
GMC sold many crew cabs to horse owners and campers who used them to tow large trailers.
Seatbelt Planet offers singles for these GMC buckets if only one side needs replacing.
GMC Truck and Coach built heavy commercial trucks and buses as well as pickups, giving the brand a reputation for working vehicles.
Personal-use GMC crew cabs with buckets were often ordered with air conditioning, power windows and cruise control.
A square-body GMC with front buckets usually has a center console that holds maps, tools or a CB radio.
Early 1980s GMC crew cabs gained a restyled front end with stacked rectangular headlamps on upper trims.
Webbing in charcoal, navy, burgundy or camel blends with most GMC bucket upholstery.
GMC dealers often sold crew cabs to buyers who wanted a heavy-duty truck with a more refined interior.
Frequently Asked Questions
Bucket seats?
Yes.
Retractable?
Yes.
Buckle?
All metal push button.
Hardware?
Not stated.
Colors?
52.
Questions about fit?
Call 574-226-6676.
1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket Seat Belt Kit specifications
- Seatbelt Planet aftermarket seat belt / restraint product (application per listing title)
- Vehicle application from listing: 1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket
- Kit listing — see overview for which seating positions / belt count are included
- Tested and certified to meet FMVSS 209 and FMVSS 302 (certification tag on belts)
- Sold as aftermarket replacement — confirm buckle style, retractable vs fixed, and seat type before order
- Complete belts are preferred; mixing buckle/tongue brands is not recommended (components are designed to work together)
- 1-year manufacturer warranty for component issues from ship date (excludes abuse, accident damage, or disassembly)
- 90-day satisfaction guarantee per Seatbelt Planet (installed returns may incur restocking fee)
Installation Tips — 1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket Seat Belt Kit
- Confirm this listing matches your vehicle (1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket), seat type (bench vs bucket), and buckle/retractor style before installing.
- Inspect mounting points for solid metal structure. Seatbelt Planet products are aftermarket — fabrication or adapters may be required on some vehicles.
- Use appropriate grade hardware. Some listings sell mounting hardware separately.
- Install a complete belt assembly when possible; do not mix unmatched buckle and tongue brands.
- After install, verify full extension, retraction (if applicable), and latching before driving.
- If unsure, use a professional installer. Improper installation can cause serious injury.
Selection help: Seatbelt Planet FAQ / guides at seatbeltplanet.com/faq.html · phone 405-736-0088.
Vintage Car Radio does not offer installation.
1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket Seat Belt Kit manuals
- Seatbelt Planet FAQ (FMVSS, warranty, returns)
- Seatbelt Planet common questions / selection help
- Use any instruction sheet packed with your order for model-specific steps
Manufacturer: Seatbelt Planet · 405-736-0088
One-Year Seatbelt Planet Warranty
Per Seatbelt Planet, seat belts are covered under a one-year manufacturer warranty for component issues from the date shipped. Warranty returns are not accepted if there has been obvious abuse, the belt was involved in an accident, or the belt has been disassembled / components removed.
Seatbelt Planet also states a 90-day satisfaction guarantee; installed returns may be subject to a restocking fee. RMA required — contact Seatbelt Planet or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not install seat belts.
FAQ — 1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket Seat Belt Kit
Are these FMVSS / DOT approved?
Seatbelt Planet states belts are tested and certified to FMVSS 209 and 302; the certification tag is on the belt.
Can I replace only one side?
Seatbelt Planet recommends installing a complete belt — buckle and tongue are designed to work together.
Will this fit 1978-1991 GMC Pickup Truck, Crew Cab, Driver & Passenger Bucket?
Match the years, make/model, and seat position in the title. Call Seatbelt Planet at 405-736-0088 if you need a custom belt.
Do you install?
No.
Need help?
844-802-4499 / 574-226-6676, or Seatbelt Planet 405-736-0088.
Specs
Installation Tips
Manuals
Warranty
One-Year Seatbelt Planet Warranty
Per Seatbelt Planet, seat belts are covered under a one-year manufacturer warranty for component issues from the date shipped. Warranty returns are not accepted if there has been obvious abuse, the belt was involved in an accident, or the belt has been disassembled / components removed.
Seatbelt Planet also states a 90-day satisfaction guarantee; installed returns may be subject to a restocking fee. RMA required — contact Seatbelt Planet or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not install seat belts.
