Terrick down Under, Thanks. I am considering a similar setup on my DRW. I am not clear on the "2 x 75 litre propane tanks that just fit between the rails , rear of axle and the hitch which weigh about the same as 4 x steel rims and tyres. "
Zulu, not sure what you are running due to no info in your profile or signature. If you are SRW, and do not have a sway bar, I can say with confidence that a rear sway bar will be a seat of the pants obvious difference in controlling sway. I do not have a sway bar on my DRW. Some folks say not needed on a DRW, with overload spring engagement modifications. I hope they are correct, but I will know in the near future. I am in the process of setting the DRW up for my TC.
Wayne