2000 Trooper LS. Stock in all repects. 59K miles.

I'm noticing some vibrations when I'm accelerating. Comes and goes, normally around the same speed/RPM.

Last time I noticed this was on my '89 Honda Prelude, and it meant bad CV joints. Is it the same for the Trooper?

Any ideas what it costs to fix, and what mileage I should expect them to go bad? I don't do any extreme off-roading.

Does the Trooper even HAVE CV joints? <img src="/forums/images/graemlins/confused.gif" alt="" />

Thanks!

I wouldn't expect this to have anything to do with the CV's, but more likely the driveshaft. Is there any play in the carrier bearing? When was the last time the joints have been serviced? (greased?)

As far as I know, the front CV's (yup, you have them) are not turning with power to them when in 2wd to cause any shudders.

- Mike

Uh....... er....... <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/confused.gif" alt="" />

What's a carrier bearing?

As for the last time the joints were greased, I have no idea. Certainly not since I bought it a year ago.

Carrier bearing is located on the rear drive shaft. It is mounted to your rear crossmember. They only use these when you have a rear 2 piece drvie shaft..

Later,
Daniel

Man, I'll have to look when the rig gets out of the body shop later this week. (Had a rather unfortunate meeting with a guardrail in Augugust while dodging a deer near Syracuse. 99% cosmetic, fortunately.)

I'll let you know! Thanks!

Partial Answers:
Bad CV = Clicking while the wheel is turning, I think it clicks more as you turn in the direction of the damaged CV.

Vibrations = LOTS of stuff. Just have to run it's location down. But with the two piece Driveshafts, as has already been mentioned, you get lots of vibration especially with lifts due to the increased angle. But even with stock driveshaft you get the wonderful shaking.

The carrier bearing and the three "U-joints" that make up your two-piece driveshaft need lubing and monitoring. When they get old and worn (like mine just last week) they cause a WHOLE lotta shakin! And you'll know sumthin is up. I had the two end U-joints and the carrier bearing replaced. It is back to only rattling during quick take offs from a stop...as "quick" as you can get with our power houses! <img src="/forums/images/graemlins/lol.gif" alt="" />

Good luck

Dana

Just a note about the CV's ona newer 4WD, they do spin while driving on a shift on the fly setup, but the transfer case does not apply power to the front wheels unless your button is pressed for 4WD. Newer SOTF systems have stock flanges that lock the hub/wheel to the CV while driving. This allows the front diff to be spinning at the same speed as the transfer case when the 4WD is engaged, thus it can be done "on the fly"

Just wanted to clarify that. <img src="/forums/images/graemlins/smile.gif" alt="" />