Used my sons trailboss today to pull some tree pieces around the yard. One piece was really big and I dug some nice ruts in the yard. Had to give it few good yanks to get it turned but it got it done. I didnt know that automatic would pull that good in low range. I am going to get that green spring to go in the primary. Should I change the secondary too???

 

I would caution you on too much pulling on that bike! I tried to pull too large of a trailer with my SP500 loaded on it with my 89 Trailboss and hosed the transmission. Did not do serious damage, but enough to make me realize that I better pay attention to the bike's towing capacity next time: not to exceed 850lbs....

Not sure of your stump sizes, but would advise caution with this bike.