Well gave the Paj a bit of a run over the Xmas period, dragged the van down to Brissy and then out to Millmerran and back home via Dalby, Mundubbera, Monto and Biloela then home to Gladstone, 1700km's all up with the van behind.
Overall pretty happy with the performance and the economy, although I think I can better it with some adjustments to timetable and conditions. We averaged 16L/100km over the 1700km's with the first 600 pushing the rig at 100km/h to 105km/h into strong headwinds which gave us high 18's but settled till we hit the Toowoomba Range which I was a bit apprehensive about but it did well despite being blocked out by an idiot who jammed me up behind a B Double from which I had to actually brake and lost all momentum, eventually got around him and plugged away at 40km/h the rest of the way up keeping the engine temp below 100deg and the trans just a touch over.
One thing I noticed was how floaty the standard suspension is and how soft the rear springs actually are, especially on the backroads, on the Highways and freeways up the east coast were fine but out over the range the car struggled to remain stable, the van on the other hand was fantastic over these roads, I must congratulate Jayco on their suspension and chassis setup as it was rock solid no matter the road surface.
Anyway I fixed the problem while I had a few extra days off before I returned to work.
Old rears and new
And the finished product, got about 60mm lift all round although I wasn't really chasing height it should even up the van perfectly once it settles in.
I will see how the rears hold up and add Airbags or go HD when I start adding the 60lt Engel and storage in the rear, but for now it should be way better than the stock springs.