Talk to Don McNeil at Flat Out Engineering. I'm in the process of installing a 94 Vette front end, rear end, transmission and LT1 motor in my 1953 5 window 1/2 ton. I bought my suspension brackets from him. It's real nice stuff. He makes brackets for a variety of models. Give him a call, he's a real nice guy and happy to answer questions. Leave him a message, and he'll get back to you.
Check out the website -www.seattlestreetrods.com/flatoutengineering.htm