Hi these handles were only on the 1978--79 model but were discontinued and reverted back to single handles as people could not change from forward to reverse gear because of the handles Thanks for my birthday wishesHappy Birthday. That’s a nice rig, I like the large handles on that.
Merry tiller fitted to move my trailer seems to work ok moves it no bother , will try it on my own trailer that I use for my tractor Time will tell