"02 Z71 rearend noise - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Knothead · 03-17-2013, 06:47 PM

My rearend developed a whining noise thats constant. Doesn't change when cornering. Put it on stands in gear, if I stop right side tire it quits. Doesn't sound like axle bearing. Opened cover on rearend,different looking carrier than normal GM. Any ideas on what type carrier it is and possible noise?

clinebarger · 03-17-2013, 08:11 PM

Quote:

Originally Posted by Knothead

My rearend developed a whining noise thats constant. Doesn't change when cornering. Put it on stands in gear, if I stop right side tire it quits. Doesn't sound like axle bearing. Opened cover on rearend,different looking carrier than normal GM. Any ideas on what type carrier it is and possible noise?

Pull the axles & check it out, The "G80" Gov-Loc locker is normal on later GM trucks.

Knothead · 03-17-2013, 08:16 PM

Are you thinking axle bearing? best bet replace all bearings pinion , carrier & axle or do these carriers problematic?

clinebarger · 03-17-2013, 08:46 PM

Quote:

Originally Posted by Knothead

Are you thinking axle bearing? best bet replace all bearings pinion , carrier & axle or do these carriers problematic?

If its just a axle bearing, Replace that bearing....Got to remove the axle to know for sure. The bearing going bad also damages the axle, Repair bearings are junk...Have the axle welded & machined or buy a new axle.

Knothead · 03-18-2013, 08:12 AM

Thanks, It is the G80. I'm going to tear it down today.

Knothead · 03-18-2013, 08:19 PM

With 225 K on the Ole Gal I guess it was time for an overhaul. The inner pinion bearing was probably the main culprit. There was also pitting on the carrier bearings also. I went ahead and replaced all bearings and seals. I cracked one of the shims for the carrier,are they difficult to find ?

clinebarger · 03-18-2013, 10:23 PM

Quote:

Originally Posted by Knothead

With 225 K on the Ole Gal I guess it was time for an overhaul. The inner pinion bearing was probably the main culprit. There was also pitting on the carrier bearings also. I went ahead and replaced all bearings and seals. I cracked one of the shims for the carrier,are they difficult to find ?

They can be impossible to find in the factory 1-piece version, An aftermarket shim kit will work.

Knothead · 03-19-2013, 05:58 AM

Thanks,I'll try junk yard first, if no luck there then parts store for a shim kit

03-17-2013, 06:47 PM	#1
Knothead Registered User Join Date: Mar 2007 Location: south carolina Posts: 247	"02 Z71 rearend noise My rearend developed a whining noise thats constant. Doesn't change when cornering. Put it on stands in gear, if I stop right side tire it quits. Doesn't sound like axle bearing. Opened cover on rearend,different looking carrier than normal GM. Any ideas on what type carrier it is and possible noise?

03-17-2013, 08:16 PM	#3
Knothead Registered User Join Date: Mar 2007 Location: south carolina Posts: 247	Re: "02 Z71 rearend noise Are you thinking axle bearing? best bet replace all bearings pinion , carrier & axle or do these carriers problematic?

03-18-2013, 08:12 AM	#5
Knothead Registered User Join Date: Mar 2007 Location: south carolina Posts: 247	Re: "02 Z71 rearend noise Thanks, It is the G80. I'm going to tear it down today.

03-18-2013, 08:19 PM	#6
Knothead Registered User Join Date: Mar 2007 Location: south carolina Posts: 247	Re: "02 Z71 rearend noise With 225 K on the Ole Gal I guess it was time for an overhaul. The inner pinion bearing was probably the main culprit. There was also pitting on the carrier bearings also. I went ahead and replaced all bearings and seals. I cracked one of the shims for the carrier,are they difficult to find ?

03-19-2013, 05:58 AM	#8
Knothead Registered User Join Date: Mar 2007 Location: south carolina Posts: 247	Re: "02 Z71 rearend noise Thanks,I'll try junk yard first, if no luck there then parts store for a shim kit



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