I did the dreaded spark plug replacement on my 5.7 with Etorque , drivers side took awhile, yikes , 1/4 drive ratchet 3/8 drive flex head ratchet 3 inch , 6 inch ext used direct replacement NGK, 72k on truck I cant go 100k ,passenger side not bad it can be done but do not rush it , just a tip. I did it all from the top of motor did not pull wheel well shield out.