Mike, Be gentle with the stick/shifter retainer and it will oblige. It's all in the motion.
tim, the dump and the 40 are easy. it's the ashton that's hard. i think its the amount of spring it has compared to the other two.
i also find that if you remove the vent on the rear and fill until it comes out the filler plug is simpler and also cleaner and in the mean time maintenance can be preformed on the vent.
