1967 - 1972 GM Trucks 1pc Door Glass Kit

Part # OPK6772 GM Truck



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Our One Piece door glass conversion kit will convert the original two window design into a more appealing One Piece Unit eliminating the verticle obstruction caused by the vent glass.

  • 1967-1972 C-10 Trucks
  • 1967-72 Chevrolet Blazer

**Additional hardware for the Full Convertible**

Availability: 3-4 weeks out

Due to the Nature of Vehicle Manufacturing and the Aftermarket Auto Parts industry, there will Always be tolerance differences thru out many vehicles. Because of those differences we have made adjustment points on our kits, but they might also require more adjusting. Meaning one side door glass might be a little different than the other on adjusting. (TECHNICAL/MECHANICAL APTITUDE IS REQUIRED FOR INSTALLATION OF OUR KITS.)

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Item# Status Description
OPK6772 GM Truck In Stock

1967-72 GM Truck 1pc kit



First and foremost, we would like to thank you for taking the time to read this letter. It has come to our attention that imitations of our 1967-72 GM Truck one piece door glass conversion kits are currently in production or released and being distributed. We pride ourselves in our 15+ years reputation, customer loyalty, and quality standards we developed over time. Be advised that One Piece Products is not responsible for any products that are purchased outside of our authorized sales channels and are not warranted by One Piece Products or supported in any way. If you purchased a kit from outside of our authorized sales channels we will not provide any technical support. Also, we do not sell ANY components of our glass if there is no previous history of purchase. 
One Piece Products is the original manufacturer of the 1967-72 GM Truck one piece door glass kit. We understand that there will eventually be imitations of our great products. We want to let our customers be aware that our kits will ALWAYS have our logo on our components and 90% of our components are made in the USA, such as glass, metal brackets, run channels and scrapers. We have certified glass technicians that have been in the glass industry for over 30 years. We stand behind our products and our employees. 
At the end of the day, the customer has the ultimate decision of where they want to buy products from. Just ask yourself this question, do you want to purchase products from the original manufacturer that has been selling this product for 10+ years or a company which has no experience and is only selling it to make money? 

OPK6772 GM Truck 1967-72 1pc Window Conversion Kit Manual


One Piece Products stands behind our workmanship and materials. Our limited warranty assures customers that our products are to be free from defects and flaws in materials, construction, and performance that are not attributed to normal use.

The warranty begins from the original purchase date and applies to the original purchaser only. If a defect in material or workmanship occurs within the warranty period, the cover will be repaired or replaced at the sole discretion of the manufacturer. One Piece Products reserves the right to make the final determination on all warranties and defects.


PLEASE make sure you know what you are buying before you place your order.  You can call or email us with any questions that you may have before you make your purchase.Test fit parts before modifying!

Under certain circumstances where One Piece Product Representative authorizes a product return, ALL SHIPPING CHARGES ARE THE RESPONSIBILITY OF THE CUSTOMER!  Items must be returned within 30 days of receiving the shipment. Returned items may be subject to a 20% restocking fee. All items must be returned in the original containers. If an item that had FREE SHIPPING is returned, we will refund you the amount minus the original shipping cost that we incurred.  The restocking fee is to deter frequent returns as well as cover the cost of doing all of the paperwork involved, inspecting the returned item, returning the item back into inventory, etc.

Disclaimer: Refunds will be credited within 3-5 days after approval, if orders were never shipped! For customers that want to return any items, refunds will take up to 14 business days. All refunds are credited to the original payment method used. IF the original payment method is no longer valid or not in current use then please contact us. 



One Piece Products / Return Department

13457 Imperial Hwy 

Whittier, CA 90605

Be sure to include a copy of your paperwork in order to process your request.


Review Product

1967 - 1972 GM Trucks 1pc Door Glass kit

Average Rating: 5 of 5
Price / Value

Average Rating: 5 of 5
Price / Value

I installed the the 1pc kit on my K25. They were fairly easy to install, except do not use the glass setting "tape" when installing the window glass into the channel...use urethane instead...much easier. I've driven the truck around a bit with the windows down and they do not rattle at all, nor do they rattle when opening/closing the doors, but yes, they do kind of flop around a little when you are rolling them up or down. Hope this helps!

Posted by: SC


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