Re: 63 & 64 Galaxies - how close
The 63 & 64 Galaxie convertibles made in the US and Canada all have similar to identical power train, (motors, trannys, rear axles, etc.) All the glass is identical, windshield, doors and rear quarter glass. Major changes were in the body style from 63-64. All the suspension and steering is the same and parts are interchangeable. Some minor interior changes, like slightly different seats and dash trim etc. Big blocks motors could be interchanged along with the tranny. Small block to big blocks or visa versa for interchange would be different for motor mounts. Six cylinder to a V-8 would be cause for some backyard engineering. Brake systems would be basically the same if both vehicles had similar power train, eg 352 or 390 engines. Best bet is get yourself an interchange manaul from one of the Auto literature suppliers.