• You can always opt for a universal lap belt.fasten seat belt image by enens from Fotolia.com
  
  Finding the correct seat belts for your 1966 Pontiac GTO can be as vexing as a yearlong hunt or as simple as placing an order online. It just depends on your commitment level when it comes to original parts. Original, functional seat belts in the right year and color can be hard to come by; aftermarket replicas or universal replacements are available at any number of local or online parts stores.
  
  

Original

• To understand original 1966 GTO seat belts, you need to understand what "original" means in the automotive world. Originals are parts that were manufactured for use the year the car was made. Those looking to restore a GTO to stock condition will want to look for original seat belts. The 1966 Pontiac GTO seat belts are lap belts for both front and rear passengers. They have a push-button release and manual cinching. Original seat belts will also be color specific, depending on the interior of your GTO. This is what can make them difficult to come by. If you have an unusual original interior color, the search for original seat belts may take a while.
  
  

Replica

• Relica seat belts for your '66 GTO are made to look just like the original seat belts. However, they will not preserve the value of the car the way original belts would. The up-side is that several companies make them. This makes them easy to come by, but they often only make them in black. If you have a different color interior and want to match the belts to the seats, you may have to have the straps custom made. The buckles themselves can be purchased individually.
  
  

Universal

• Universal seat belts for your 1966 GTO are cheaper than replicas but do not look like original parts. They are designed to bolt easily into the original seat belt mounts, making installation effortless. They often come with an updated retractable feature instead of manual cinching.
  
  

Over-the-Shoulder

• There is no such thing as original over-the-shoulder seat belts for a 1966 Pontiac GTO. However, there are aftermarket kits you can purchase to install in your car. It is an upgraded safety feature but is not true to the stock condition of the car. Installing over-the-shoulder seat belts also requires modification to the mounts and to the car itself.