The Nitto Mud Grappler 35x12.50R16 and 315/75R-16 are the same size tire right?

 

They will basically be the same size. Check to see what the ply rating is. There is a chance that they are different.

 

I was looking at the ones that were on your website. Nitto makes boths sizes I dont know whats the difference though .Any chance they will be back in stock soon?

 

I wont be able to check until friday. However, if you send Discount Tire Direct (member on this site) a PM he should be able to check on for you in the morning. The nittos are great. We have a few guys running them here. They are a little loud, but what mud tire isnt? Let us know if you would like to get some

 

You cannot tell the difference. I have both tires at home. When I ordered my tires for my son's jeep, they sent me 3 35R15s and one 315R16. I did not realize they where different until I had them mounted. Could not tell the difference. I bet they use the same tread castings