
I have measured the Vega wheelbase (97 in.) and the 84 Corvette (96.2).
After looking at everything closely the only major thing that I can see with my swap is that I will have to install small wheel tubs (14 inch) in the rear to get the 10+ inch tire under the fenders on the stock Corvette wheels.
This is a photo of a C4 Corvette with the body panels removed.

I have it in my plans to use the rear hoop section and the floor pan (since my Vega floor is in bad shape) but use the cowl/dash in the Vega which is a GT panel. I am also thinking of doing something while I am at it that I have never seen before which is a top chop on the Vega Sedan Delivery. Does anyone know of anyone else that has chopped the top or put a C4 suspension under a Vega? I would like to hear any tips/ideas that anyone might have on this Vegavette project.
I used Photoshop to edit the photo to cut 3 or 4 inches out of the top (sorry for the poor editing but it gives the idea of what it would look like) and I like the change so I think I will go for it when I can get it into the basement (putting a 5.7 Vortec in my 97 Blazer AWD right now).

The windshield needs to be replaced anyway (cracked) and I think I can get a piece of Lexan for the windshield after lowering the roof 3 or 4 inches. I will be putting a fiberglass rear hatch on it anyway and can use Lexan in that and the doors also.