The tires I'm using...

I put Dunlop Rover A/T radial 215/70 R16 tires on the front and back. and threw the rotten 15" snow tires that had been on the back into the trunk for spares.

The 215/70 R16 tires are about an inch wider than they should be to replace the 16x6.00 tires that were standard. Height is right. In my limited experience, you can use these WITHOUT tubes on these Plymouth "Safety" rims!