The point is that the engineering has already been done, all someone needs to do is use parts that have been matched already. It isn't hard to buy all the parts from a wrecking yard, and replace them onto another vehicle, it is afterall GM parts, going onto a GM car, made by Saginaw, a GM subsidy. How many GM light trucks gave up their 4L80E parts for a classic muscle car? It didn't come on that vehicle, but it surely can be adapted to work on one.
You can end up with the same mess by buying all Wilwood parts, and mismatching them.
If you need an how to article for directions, here it is:
https://bangshift.com/general-news/t...-car-or-truck/
It's not like it has't been done hundreds of times, for decades, with success. Having hung around many wrecking yards for many years, and making conversions work with used parts from a wrecking yard on race cars. Before there was the internet, and aftermarket suppliers at your fingertips. It's not that hard to do, using common sense.
That's the definition of hot rodding, not getting on the net, and BUYING what you need, then bitching that the aftermarket vendor sucks because after you bought all his parts, and you're not getting the results you wanted.
It's hydraulics, and physics, sometimes you have to figure it out. If you want someone else to figure it out for you, then you pay them for figuring it out for you. It's not impossible.