Tried to do the plugs and wires on my '01 Silverado 4.8L. Truck has been at the transmission shop getting a rebuild for the last month. Original owner, just hit 160K. Ordered Bosch plugs and AC Delco wires from Amazon a few days ago. Crack a beer and have #'s 1-7 out in 20 minutes or so, no problem. Having XXL mitts makes getting to #8 a PITA. Takes just as long for that one as the rest. Without using the old piece of hose trick, I wouldn't stand a chance getting the new #8 back in.
As soon as I take the wires out of the box I can tell they're short. About 1.5 inches short. I did these (and coil packs and injectors/rails) a few years ago and had no issues. Must have luckily clicked the longer version before. "9748GG" are short, "9748HH" are the longer ones and definitely needed for this (mine). Four different coil pack #'s listed under the "information" logo. Box the new ones up and come in and get the return setup. Checked local O'Reilly's, AZ, Advanced and they all three have them in stock, for nearly $30 more than Amazon ($51vs.$80). Have a second ride, so the truck can sit another day for $30.
***this is also the first time I have seen an Amazon return that costs $6 if I box/bag them up and print a label at home to drop off at UPS as compared to $0 if I just bring the AC Delco box back (with the Amazon supplied QR code image on the phone) to UPS for them to take care of....whatever. Beer still tasted good.