If you drive many hours a day, whether that's in a semi truck or a heavy-duty pickup truck used for your business, you need to consider the seat in the cab. This seat is more important than you may realize for your comfort and health. There are often replacement seats you can buy and install somewhat easily, so you don't need to think about an entirely new truck when the seats are the only thing worn down. Note a few clues that it may be time to install new seats in your truck.
Your aches and pains
You might be a bit stiff and sore from driving all day no matter the type of seat you have in your truck, but if you notice constant aches and pains, especially in your hips and lower back, areas that should be supported by the truck seat, it can be time for a replacement. A good seat should cushion the bumps in the road and help absorb some shock with the truck's movement so that your body isn't jarred around as much while driving. Don't assume you're just getting old but consider if it's time to upgrade your truck seats to help with all that discomfort.
You've gained weight
If you've gained any significant amount of weight over the years, you may want to reconsider your current truck seats. You might need a seat that offers a stronger suspension against your increased body weight, so it protects you from sinking into the seat and allows you that unobstructed view of the road you need. It might also be that you simply don't fit your old seat; the arms of the seat may press against your hips or the back isn't wide enough to give you the support you need. Be honest with yourself about your body weight and choose truck seats that accommodate your current frame.
Your ride has changed
If you used to drive on smooth city roads but now find that your work has taken you over unpaved roads or those that are rougher on your truck, you may need new seats. Like getting a new suspension for the truck itself when driving conditions change, you may not have needed seats with strong springs for those city streets, but for driving over gravel or any rough conditions that create more vibration in the cab, you need seats that keep you more comfortable and which are meant for those rougher rides.