Yes, it's very easy. Go to any reputable clutch/driveline or transmission shop and ask them for an adjustable clutch rod for your truck. It should be about $8. Next, crawl in your truck and look up at your pedal assembly. Just to the right of your accelerator pedal you'll see a rod that connects your clutch pedal linkage to the master cylinder in the firewall. It will look just like the adjustable rod you bought, except it's one-piece and not adjustable. You should have a small e-clip or the like holding it on, along with a neutral safety switch that looks like a rectangular black plastic box. There's two tabs that hold it together. Use a pocket knife to pry on the tabs while you seperate it, and it will come right off. Next, slide the clutch rod out and set it next to your new, adjustable rod. Make the new rod about the same length as the old one. Put it back on the truck (but don't hook up the neutral safety switch yet). Push in the clutch pedal and see how much play there is. If there's too much slop, lengthen the rod. I usually leave about 1" of freeplay on the clutch pedal. When you're happy with how it feels, tighten the nut on the adjustable rod so it won't move on you. Reinstall the neutral safety switch (I've had problems with getting them to fit with the nut on the adjustable rods). If you can't get the safety switch to work, I just 'eliminate' it by opening the case, sticking a bolt that's the right length to push the slide all the way in (so the truck thinks the clutch is pushed in) and snapping the case back shut. Now, if you have cruise control, you will have problems since the truck thinks the clutch is pushed in so it will not engage cruise. I can't think offhand what wires you need to connect, but someone will chime in. /ubbthreads/images/graemlins/smokin.gif
Also, it is MUCH better to have too much play in your clutch than to not have ANY freeplay. If you don't have any freeplay, your clutch won't be fully engaged and will always be slipping a little- which is why I leave 1" of freeplay so you can be sure it is engaging fully.