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Corvette Original Outer Seat Belt Guide Underbody Reinforcement Pair 1968-1969 on


Livermore, California, United States

Livermore, California, United States
Mobile: Click on Item Description for details/pics. Please read the full description and scroll all the way down to look at the detailed pictures.
Brand:GM Other Part Number:C3 Floor Pan Support Bracket Brace Manufacturer Part Number:3926439 3926440 Placement on Vehicle:Rear

More Quality Corvette Parts from BigCityCorvettes

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For sale is one pair of used outer seat belt guide underbody reinforcements

P/N 3926439 LH, 3926440 RH

Correct for 1968 Corvettes (With Upper Stud)

Works for 1969 Corvettes (Remove Upper Stud)

  • The seat belt guide outer reinforcement pair features the mounting stud specific for 1968 Corvettes.
  • 1969 Corvettes did not use the stud for the seat belt guide so Early to Mid-1969 Corvettes have the stud cut away and for Late 1969's GM did not install the stud at all.
  • The pair does show some wear wear due to being used.
  • The finish on both reinforcements is heavily oxidized.
  • There are areas that show some pitting and metal flaking.
  • There are no rust holes or severe metal thinning.
  • The rivet moutn holes are in good condition.
  • All weld nuts are firmly attached.
  • Both studs show damage to the threads and may either need to be replaced or chased (see pics).
  • One of the reinforcements show some slight waviness on the surface with the stud.
  • Despite this, both reinforcements seem to be in their general factory shape.

This is a fair original seat belt guide reinforcment pair for your Corvette, please look at the pictures below. If you have any questions please contact us.

Genuine GM Part

Shipping and Insurance Included for the USA!!

(All US shipping will be by either FedEx or USPS depending on the part)

International buyers please contact us for a shipping quote before making your purchase.



Sales Tax Added For CA Residents

Pictures Below

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Payment Information

Payment is expected within 5 days of purchase unless other arrangements are made. On the 6th day, an unpaid item case will be opened with eBay to cancel the transaction and the item will be re-listed. We accept Paypal and do accept other forms of payment, please contact us for details.

Office Hours 8:00 AM to 6:00 PM Pacific Time, Monday through Friday. Phone # 925-294-9498

Sales Tax added for California Residents.

Shipping Information

We ship most items USPS, FedEx or Greyhound PackageXpress, depending upon which is most economical. Insurance is included with each package we ship. Tracking numbers will be posted to the buyers Purchase History page in eBay. Most items ship out within 1 business day but sometimes it can take 3 business days.

We will expedite an order if you need it quickly, please contact us and we can give you the expedited shipping costs and options.

If your item gets damaged in transit, please contact us immediately so we can get the things moving on a replacement.

If the tracking number for your package says it never got delivered, we will ship a replacement to you but it may take as many as 7 to 10 business days to get an insurance replacement on its way to you.

Dead on Arrival

If you have a problem with a part, please bring it to our attention. We are easy to work with but don't take to squeaky wheels very well. We will either fix it, replace it or issue a refund, whichever fixes the problem.


Used and NOS parts are sold as is. We do our best to accurately identify, describe and photograph our products, but we are human and do make mistakes from time to time. If we have made a mistake, please contact us and we will do our best to fix it.


Returns are accepted within 30 days of receipt, no questions asked. Refunds will be made minus a re-stocking fee. Refunds will be made after the item is received and is verified to be in like condition from when it was shipped by us, so please pack returns very well. Even though most of our items say "Free Shipping", there is a shipping cost to get the part to you.

Importance of Feedback

Please leave 5 star feedback after you have received your item and it is to your satisfaction. If you feel you cannot leave 5 star feedback, please contact us and give us the opportunity to make it a 5 star experience for you. We will do our best to make it right. Our goal is to make your experience as easy and straight forward as possible.

Phone: 925-294-9498

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