Wilwood conversion problem

That seems like good advice. I think you are right that the spacer would need to be about 1" thick, and that would put me out pretty wide. Found a set of E-body rallyes on Craigslist that I'm looking at tomorrow, and I'll be bringing the Wilwood hib with me to make sure it fits. Sucks to have to eat my current wheels and tires, but hopefully I'll be able to sell them off and end up breaking even. One problem I'll have is that I currently have 5 x 4.0 bolt pattern and the new rims are 5 x 4.5. The Wilwood hub allows me to put the studs in either pattern, so this might actually be a benefit down the line given how hard it is to find after market 5 x 4.0's. But it leaves me with the smaller bolt pattern on my rear wheels. so I'm thinking adapter on the back two corners - do you see any problem with running a spacer on the backs but not the fronts?

And yes, originals are from drums.