Had 285/55R20 dune grapplers on my truck when I use to have rockstars. They did fine under power. At the time I had Edge Evo Race running Level 5 and it took a 4 psi boosted launch in 2WD for them to spin. Even when I would stand on it from a stop light, they would just go with no spin. When I got EFI, my 150 tune was the same results. Off the pavement they did just fine in what I could get in out in my area. Which is light offroading. I like them and never had a problem with them.
Battlegraduate09 had the same tires and went to a 305/55r20 Terra Grappler and said he'd rather have the Dune's.
I just ordered a set of Kumho mt's on fuel octanes.. Ill give a status on them once I try them out.
you will be lucky to get 20k out of those. the tread is super soft and easliy cups. they wear very fast
unless you run a street tire (like the falkens zenix or the other one everyone runs), hook up isnt gunna be all that great. MT tires were never ment to be drag race tires, nor ATs or any other all terrain tire. ive heard good things about the dune grapplers with hook up and how they hold under power. the longest lasting AT i had were procomp extreme all terrains but the tread compund is hard and does not hook up that well, they jsut wear like iron. The KM2s i have now have 30k on them and about 1/4 tread left. after the motor is done, ill be lucky to get another 5k out of them but thats the joys of discount tire warrenties
Thanks for the input, ill still test them out.. My plan was to get another two wheels/tires and a tire gate to hold them so if these dont hook up Ill get two dune grapplers instead. They dont make a 35 inch r17 street tire do they?? But my logic was a softer compund and less on the road should get more force to the ground. Tire life is never good if you run them hard but my truck isnt my daily driver now.