Ha, just reading this thread about carrying a motorcycle. I also carry a bike. You obviously got the best left out there, however i believe you are seriously over weight on the REAR axle. Not Total GVWR but rear axle. You may want to get on a set of scales at any truck stop and get each axle weight. At this point it may be closing the barn door after the horse got out. However, for future purchases [B]or for service issues on the rear axle you may want to change fluids on a much shorter time frame. Again just a friendly heads up. Best of luck Bill