Well, Sam, this must have been our week. As I did the same thing the other day. I am aware of the minimal clearance and have had mine raised (obviously not enough) so I am usually extremely careful, but this one blindsided me.
I have an '89 Spirit. Different floor plan, different plumbing layout, but similar problems.
You may or may not be able to use 14'' tires
. It really depends on the clearance you have. If your tire is completely centered in the wheel well, then you can. Mine wasn't so I had to wait to get an new axle
before I put on the 14's. What you can do (what I did initially) is upgrade your tires
from the 175/13s to a 185/13s. I had to order mine from Goodyear and they were quite a bit more. A much more substantial tire that adds a little height. Worth the cost? I dunno, probably not.
You don't need to get a new axle
like I did to raise it. You can take it and have it raised and have 14'' tires put on for less money than a new axle
Gray water tank ....