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STOCK TIRE INFO:

​This is stock tire info.  It recently came up again in this thread on ratsun.net's forum.
https://ratsun.net/topic/79328-nm-521/page/3/?tab=comments#comment-1720365

​
I added this info in a response to DatzenMike's comments.  I decided to put the info here since it's buried in someone else's thread that I'll never find again when I want to reference it. lol


"Oilspot and I measured actual tires......your chart was made by someone.  The info I dug up supports the dimensions Oilspot and I have....ours are actually a bit small.  I found two sites that list the 6.00-14-8PR LT tires.  The 521 manual shows that the rears are the 8PR(8ply rating) and the fronts are only 6PR.  Both sites list their tires of this size at 680mm overall diameter......which is 26.77" (26 3/4").  Tire Rack's site shows the 6.00-14 from 1965-1970 converts to 175/65R14.  The line below that shows this size in previous years and gives different "current" sizes.  6" is only 152mm.....so the 175 listings are already wider, but at 70% sidewall height(times 2 plus the 14" rim only comes to 600mm....or 23.6").  A 175/80R14 would come in about 25", so maybe a 185/80R14 would be the closest....if they even make them."