2004 silverado cv axle issues

Bigbluechevy

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Joined
Jan 20, 2009
Location
indian trail
Hey so I have a friend with a 2004 silverado, and he did a torsion bar lift on it a while ago. he keeps getting the typical CV axle noise but I replaced them and it still does it. Do any of you have a binding issue with yours after the t bar lift?
 
Any more than 2" or so on a 1/2 ton will start to bind the CVs. 3/4 and 1 tons can take a little more of an angle. Are you sure it is the CV making the noise, or are the hubs going out?
 
its a friends truck so I need to drive it for myself tonight. We met for lunch today and he said his master tech friend said it was a cv and when he changed it, it didnt help, so I am thinking you are on to something with the hub Idea. I am gonna see if he can bring it over tonight. Because the torsion bar kit only adds like 2" he said.
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I just think its odd that they would bind when he turns but not when he goes straight if it is from the lift. I do believe it is something else, I just needed another opinion. Thanks, Connor.
 
1. The amount of lift the torsion bar "lift" gives you means nothing, you can crank on top of that to get even higher. A torsion bar "lift" is nothing but a reindexed key, which allows you to crank farther. 2" of crank would have netted the exact same result.

2. The CVs are always going to bind worse when you turn than when they are going straight since it is in a compound angle in both the up and down and side to side directions. Keep in mind a CV joint greatly reduces in capacity when it is run at more of an angle, this is why they break so commonly when they are drooped out offroad. Keep them low and level and they are much stronger.
 
a good way to check for hub noise without jacking it up is to drive it down the road somewhere where you have room to veer off left and right (simulate a curvy road) if the noise goes away when you veer right (thus taking weight off of right side/ putting more on left side) it is right side bearing. and visa-versa. these trucks and suvs are bad for hub's going bad, even if they are not loose they can still get noisy. i worked on one at the chevy dealership when i worked there that was so bad the only thing holding the wheel on was the cv shaft! it tore up the caliper, rotor and cv shaft... hard to believe the grinding noise didnt send up a red flag to him earlier....
another less common noise is the differential bearings can loosen up in the aluminum case and cause a growl mostly only noticed when your coming to a stop, right before you stop.

just my 2 cents... hard to tell without driving it.
 
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