Saw your post on the HL forum. Wanted to put a dgl in 04 rubi but seems you getting 2.5 years out of it is pretty good. The thread in HL forum doesnt read to good about the DGL. I put 27,s on my rubi noticed the power decrease as well. Guys are running 28,s on rubicons with a power kit and have no problem. Maybe a power kit ftrom HL is all you need to turn the 27,s. I am sure somebody on the HL forum could tell you. Bike looks good on 27,S.