4.3 plug change

I took my 2002 S10 4.3 4x4 to a local shop wanting to have new wires and plugs installed. I got a price of $500.00. When I asked why the high price, I was told that changing plugs on the 4.3 is a nightmare. Anyone have the "secret" to changing plugs yourself ?

there is one plug that is a bit of a bugger, but not a nightmare. take it somewhere else that has done a few of them before

Jack it up and take the wheel off. You can get to it so much easier.