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63 Olds Cutlass 4-lug to 5-lug change.
OK! I am not an expert in this change over. Anyone who can help just email me and I will correct the information.
The info I have is you need late model Chevy Corvair front hubs and drums. I think this is 67/68/69 Corvair. They used 5-lug bolt pattern. 5 on 4.5” the same as all the 64 thru 72 Olds Cutlass. They are exact fit to the existing front spindles. Just remove the existing hub and replace the with the Corvair set. Now the rear you need to remove the axles and have them welded and redrilled to 5-hole pattern. I have no info on rear drums.
Another good source of information is the Buick Yahoo group. They are very active and have a lot of tips. This is there web address. (http://groups.yahoo.com/search?query=skylark616263)