This Chevrolet dash side extension with filler is a great addition to your car. It is specifically designed for the 1972-1982 Corvette and fits the RH passenger side. The unit is a genuine GM product with OE/OEM part number 3996846. It is a vintage part made in Canada. Please note that this product is not a performance part and has no universal fitment. It comes as a single unit and is perfect for anyone looking to replace their old, damaged or missing dash side extension.


Used. In good, usable condition with minor damage from removal, as shown in photos.  This is correct for 1972-1982 and may be used for 1968-1971.  This is a finishing piece that bonds between the firewall and the fender to give a finished edge to the pillar.  It will need to have bonding mastic removed and be reconditioned to be used, but it is complete, structurally sound and intact. This is made of SMC Fiberglass. No returns.