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73-87 Chevy _ GMC Trucks => Blazers/Jimmys => Topic started by: GUILLERMOARIAST on October 01, 2007, 12:50:25 pm

Title: front axle makes "trrr" recurrent noise
Post by: GUILLERMOARIAST on October 01, 2007, 12:50:25 pm

Hi, i have a Chevy Blazer 1980, mechanic gearbox, 4x4.
The problem is as follows:
Yesterday i was driving seeking a beach, and connected the front traction, and heard this recurrent noise "trrr" and some seconds after, again "trrr" and so on. I went down to check tires graze, but all normal. I looked for oil spots, nothing.

What happened?

Title: Re: front axle makes "trrr" recurrent noise
Post by: VileZambonie on October 01, 2007, 02:10:00 pm

 ???

Do you have auto locking hubs?

Title: Re: front axle makes "trrr" recurrent noise
Post by: zieg85 on October 02, 2007, 03:20:23 pm

sounds like stiff front axle u-joints to me.  My $.02

Title: Re: front axle makes "trrr" recurrent noise
Post by: jays2w87 on October 02, 2007, 06:55:25 pm

Were you moving, How fast ? Turning at all ?
Maybe bearings up front ?

Title: Re: front axle makes "trrr" recurrent noise
Post by: Toolmaster on October 02, 2007, 08:01:25 pm

When was the last time you checked & repacked the wheel bearings ?
(bearings should be washed out before re-packing)

Also check the F&R diff oil and the T/Case oil, If any are milkey change the fluids.
 
The noise you described, Sounds like the axle inside the spindle without any lube.
 
Make sure to lube the brass bushing inside the spindle when reinstalling.
(this area should be cleaned also)

This will also be a good time to check the breaks ball joints and steering parts.

Title: Re: front axle makes "trrr" recurrent noise
Post by: rdhack on October 04, 2007, 07:31:27 am

spindle bearings

Title: Re: front axle makes "trrr" recurrent noise
Post by: VileZambonie on October 04, 2007, 09:36:28 pm

Muffler bearings
(http://i6.photobucket.com/albums/y228/Sabaka454/Mufflerbearings.jpg)

Title: Re: front axle makes "trrr" recurrent noise
Post by: 1973c20 on October 05, 2007, 08:48:00 am

Hahahaha good one Ville! Which reminds me, maybe I should go check my muffler bearings.....

Title: Re: front axle makes "trrr" recurrent noise
Post by: Lt.Del on October 05, 2007, 03:51:07 pm

Those bearings take a special grease--you have to wear gloves.

Have you checked your windshield washer fluid--if it is too full, it will make that noise.

 ???