I have a 98 blazer ls 4x4. their is a loud popping nosie coming form under both floor board. Its not like a axle going out its like it pops everytime the suspension works up and down.Hope you guys can help me again thanks

 

Take a look at the bushings for the torsion bar crossmember.

 

What should i be looking, just somthinh out of place? Im a engine man not suspenson. Should i just replace the bars and bushings and if so how much for parts and speical tools if any. Thanks for the reply.

 

The bars should be fine. Follow them back to the torsion keys. The torsion keys are supported inside a crossmember. The crossmember is supported by a bushing on each side to the frame. You should be able to tell what shape the bushings are in by looking at them.

If I'm not mistaken, I believe you can only get replacement bushings made from rubber, as I have not seen them from ES or any other aftermarket manufacturer. If someone else knows where to get poly bushings, please chime in! I believe you can get them from Rock Auto, GM Direct, dealership, etc. No clue on the cost, though. I wouldn't imagine they would run too much.

There is a specialty tool required to relieve the tension on the tbars, though you can fashion one up using a c-clamp. Others have used various other means/tools. Do a search and you should be able to find more on how to remove the keys.

 

Thanks for the help, its a mess out side atm. I will have to wait till it dries up a little bit. I dont like laying down in a mud hole....lol