This is a "BRAND NEW" Power Antenna Cable for your Original Delco Factory Power Unit. This Cable is manufactured by us, ... The Antenna Source.  This cable is warranted for 1 year.  As long as your tube sections of your mast are not bent then this is the part that breaks the most, it gets brittle with age and simply breaks.  This Cable Fits both models with and without CB. 

Note:  So if your Mast is not Bent and yet you hear your motor running and the mast will not move when you turn the radio on and off, all you need to replace is this CABLE.  This GM Delco power unit that you have in your car has a separate mast and cable system, allowing you to replace either your mast or your cable separately....

Note: .. This Cable will NOT COME with written instructions. We don't support installation help with this part.

( 3 ) ... Corvette Complete Power Antenna Kit

    The 1978 Corvette power unit is specific for this year only. Meaning a 1979, and 1977 unit are totally different.  GM used this unit only in 1978 in the corvette, easy to ID, it has an aluminum gear case. That said we carry new Genuine GM gear cases.  We only have a few left, when there gone there gone. We regularly rebuild these power units, both with and without the CB option.  So if your interested in have your unit professionally rebuilt give us a call, 920-686-0644.