[theshortshorttrailer]

Thanks for the info. Since I'm still learning about my sub. Is there any raason that a 67 box would be on a 66? There are no other mount holes to indicate it was swapped in place of a different part, and the upper shaft has not been cut? Chevy shop's 67 box seems close but the case is a bit different. We're they made by different manufacturers? Again thank you all for the help!