What air pressure in the tires?

 

^^^^ my first thought, too.

What type of tires? Bad ball joints can give a rough ride. Bad shocks?

 

Thanks for taking the time to answer you guys. They are Toyo tires "Open Country". I'm running them at 22 lbs. in front and 20 in the back.

 

wow, that is way too low. you should be closer to 35-40 psi. something has to be wrong if it really has that bad of a ride with those pressures.

if there is no clunking or symptoms of bad parts, I would look at shocks. the rancho 9000 adjustable seem to provide a soft comfortable ride according to those that run them

if that still doesn't get the ride to where you want it, dropping to 17 or 18 inch wheel would help. but you should still run the right pressure. you can have unsafe handling and bad wear by running your tires that low

 

I've only been running them like that for the last few weeks. It helped but it feels more like a suspension issue than tires. Just feels like there is no suspension, me, seat and tires. I had an alignment done a year or so ago and the mechanic said that the shocks look new, bilstiens. could it be that since it's classified as a work truck the suspension is stiffer? It's a short bed single cab so there's not as much weight as a double cab?

 

...... getting a softer ride out of my truck. ... It does have aftermarket rims and tires, 275,60,20's. The front is stock while the rear has lowering brackets ....

So, the truck has aftermarket wheels and tires, plus the suspension has been modded, which means the Pandora's Box of various ride-quality issues has been opened. Perhaps there are additional mods that have been done, which you are not aware of. It might be worth trying to contact the person who did the mods and at least finding out what was done. Maybe the springs were changed, maybe this, maybe that, who knows?

At this point, you're playing a guessing game. I always recommend taking it slow and easy, with small changes to see what the results are. Tire pressure is certainly an interesting comment. I've never heard anyone running that low of pressures, plus I'm surprised your TPMS isn't warning you.

Anyway, my first change would be to a set of stock shocks. Next I would probably do wheels & tires. I would buy 18" wheels. You can find a set of brand new GMC takeoffs on eBay for $500 or $600, then get a nice set of easy-riding street tires.

If you want to do something on the ultra-cheap & easy, add a few bags of sand in the box, a couple hundred pounds worth.

 

I haven't run them on my truck, but general consensus is that the bilstiens are on the firm side.

 

Firm and controlled. Which is different than harsh.

But yeah 20lbs is WAYY too low for those. 40ish psi

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At that low of air pressure, you're going to wear-out the outer edges of your tire tread really quickly. I run my Michelin 275/60/20's at 38 psi. My truck rides great.

 

I would suspect that you may be on your bump stops if the ride is that bad. Definitely need to see a couple pics.

 

If you are going to lower it again just notch the frame and your ride will be fine. If riding on the bumpstops then notch the frame you'll be fine