Ok so I have been lurking in the shadows long enough. This is my build over the past 6 or so years. Started life as a Georgia car rust free. Needed a family hauler. I came from a 66 Chevy II post car. 1978 Malibu wagon. Currently it is a 6.0 ls with a 4L80 and 3.42 posi. Not quite done but they...
So I was looking at upgrading the 7.5 rear with 2.73 in my wagon. Has anyone used the grand national full floater sold by speedway motors? https://www.speedwaymotors.com/-Grand-National-Rear-End-w-GM-Metric-Brackets,295051.html
Looks too good to be true and takes the stock front calipers...
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