Once you receive the product, you will get a user manual from the floor. You can do the installation yourself. They explained in a very detailed way. As a matter of fact, you can also see this from customer reviews. You will notice how much easier it will be if you remove the old deck and attach the new deck. All you have to do is to remove the old deck and attach the new john deere mower deck and continue the mowing. You can use this track with the models below.
LA105, LA115, LA125, L100,L110 and more john deere mower deck.
if you want to buy and look at customer reviews you can look at it from the link below
John Deere Complete 42″ Mower Deck for LA105, LA115, LA125, L100,L110, and More