Trailer they do look similar in tread design. I just looked and based on the company specs they both are 3 ply tire designs. I was not aware the mudrunner is only a 3 ply tire!!!! Their must me an explanation on why Goodyears 3 ply tires are in the same bracket as the 6 ply tires that have been suggested in this thread. I can't answer this question though, never looked hard into the mudrunners.

The Kenda's, Mudbugs, Gators, 589& Mudlites Xl'sare all 6 ply tires.Kenda has 3/4" lugs the rest are 1-11/8" lugs. I believe the mudrunner is around the 1" mark for lugs. ACT is 3/4".

I haven't ever found carisle tires to be great in quality...although my experience with them is in the trailer tire side of things! They are reasonable and servedthe purpose.