My 72 Ranchero GT has developed a problem. We were trying to move it and when my dad got in it to back it up he tried putting it in park and it wouldn't move so then he tried putting it in another gear and he ended up getting it stuck infirst. At first I thought the linkage had broken and gotten jammed but I looked underneath and everything looks intact but I can't move the shifter at all and I can't shut the key off. There is also a slight grinding noise when you turn the steering wheel. Any ideas on how to fix this?