Super easy!
Living in the country the tractor sprinkler is a necessity! More so now that I have gotten old! When the tractor stopped moving it was a major crisis. After going online and determining it was the gears and they needed to be replaced I was worried. At 92 yrs. old I was unsure if I'd be able to replace the gears. So I was very excited when the new gear box arrived. It came WITH very easy to understand instructions (I didn't have to go online or scan some code to get directions). It took me all of 6 minutes to replace the gears and 3 minutes of that was looking for a screwdriver! It was the easiest repair I have ever done. The sprinkler now works like new and I am a happy camper!