a locked diff is easy to achieve but one its done there is no going back. all the spider gears striped in the 5 speed on my westwood tractor so i just welded it up and is didn't give trouble again but theres no way to unweld it!
you could try chains but that would rip the ground up. another option is filling the tires with water and having a lower pressure so it weighs the back down but it will put a bit more load on the gear box.
the best thing is either put on 100kg or go buy some agricultural type tractor tires to fit it, but there again it rips up the ground.
a 45 degree slope is very harsh and about the limit ide go on with a ride on as turning can get very dangerous at that angle.
regards jay
