I have a '99 Blazer and this came in very helpful. I had to pull the air filter unit off first as that was above the steering shaft.
The other thing that is helpful is a spark plug boot puller. I used one my neighbor had and I am going to order one of my own. It was the OTC-7078. It is currently available on americanhomeoutlet.com for $4.95 each. Search for otc7078.