General Tune-Up Question

[liltew22]

I am doing routine maintenance on my 2004 GMC Yukon xl slt, and I am wondering if I need to replace my wires or can I just replace my spark plugs?

[8.1HD/ALLISON]

Wires seem to do ok much longer these days. Up to you really. How many miles?

[txab]

Plan on replacement. You'll probably tear one up removing it

[SouthernSilveradoGuy85]

I usually replace the wires while replacing the plugs. I figure I'm already doing the plugs so might as well replace the wires since I'm already into it. Plus the way I do it, it literally only takes 5 minutes to do all of the wires. It really just comes down to rather you have the money to buy wires or not.