What is needed to stop the squeaking when I go over bumps ( My truck has 175K on the odo )

[gai092460]

My 89 Comanche has terrible squeaking noise whenever I. go over  smallest bumps in  road ,any idea on how stop it 

[eaglescout526]

Depends. Have you replaced any suspension components? 

[gogmorgo]

Find anything with a grease nipple and put grease into them. Crawl underneath and bounce the truck and try to locate squeaking noises? There's a lot of moving parts in the suspension and you'll have to narrow things down somehow. It could even be something in your seat creaking.

[MiNi Beast]

Leaf packs or shock my first thought. 

[gai092460]

Thanks I will start with Leaf packs and shocks 

[MiNi Beast]

Never count out worn rubber bushings as well that can be found on most suspension components. Good luck.  few us understand finding a squeak or a rattle source on these comanches. 

[jdog]

https://tenor.com/view/turn-it-up-music-on-volume-gif-14441704

[gai092460]

Where are the rubber  bushings located 

[MiNi Beast]

In the connection points on the frame and axles. Leaf springs have rubber busings where bolts on. Control arms also contain bushings. Shocks has some bushings as well, however could be the shaft itself squeaking as it goes up and down being dried out. You also have squeaker warning when its about time to change brake pads.  trac bar at the axle side can also be worn. Ball joints have even squeaked warnings before failure. Best to go ahead and grease everything you can as its been said for sure.  maybe jump up and down on it and shake it all about and perhaps help pinpoint it more accurately. Could just be the squirrels under the hood. Feed them.   

[gogmorgo]

So far I've mostly found squeaks to be due to metal on metal contact, usually due to lack of lubrication. A perished or loose rubber bushing with a metal sleeve will also result in metal on metal contact, however. Get underneath and (carefully) give it some bounces, see if you can trace the noise, see if there's play in any pivot point. You might need to have weight off the suspension for that. Having someone turning the steering wheel back and forth just past the point of taking up and slack can also be helpful to the process. Having someone walk around outside while driving slowly can also be helpful to pinpoint to specific corners.