Squeaky Leaf Springs

[blkshadow]

what is a good lube to use on my squeaky leaf springs? anything i've tried so far that you spray on washes off or just quits working within a week. wd-40, multiple spray type lubricants are what i've tried, any suggestions? thanx, jd

[1999 Tahoe 4x4]

I have the same problem since the tuck was 2 years old.

 

Since then I have used TriFlow. It is perhaps a little more effective than WD-40. Lasts a month or two.

 

Also I was never really able to identify to source of my squeeks. So I just lube everything that moves on the leafsprings. If you have an idea about the source of the squeek let me know.

[blkshadow]

I have the same problem since the tuck was 2 years old.

 

Since then I have used TriFlow. It is perhaps a little more effective than WD-40. Lasts a month or two.

 

Also I was never really able to identify to source of my squeeks. So I just lube everything that moves on the leafsprings. If you have an idea about the source of the squeek let me know.

mine seems to be coming from the thing that holds the springs together at the rear of the spring right before the shackle. i can push on the rear bumper ,side to side, and it squeaks. i had my wife push while i crawled under to listen. that is how i found mine. lol, jd

[millhouse49]

Subject: Squeak Noise From Rear of Vehicle (Lubricate Rear Leaf Springs) #06-03-09-004 - (06/02/2006)

 

 

 

Models: 1999-2007 Chevrolet Silverado (Classic)

 

1999-2007 GMC Sierra (Classic)

 

 

 

 

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Condition

Some customers may comment about a squeak noise coming from the rear of the vehicle. During normal operation, certain vehicles may exhibit a squeaking noise that may be traced to the rear leaf springs. While this noise is an operating characteristic of leaf springs, the frequency and severity of this noise will be affected by the roads that the vehicle is driven on.

 

Cause

This condition may be due to debris getting between the leaf springs.

 

Correction

To correct this condition, lubricate the rear leaf springs using the following procedure.

 

Important: It has been found that the application of grease to the rear leaf springs does a better job of preventing the noise from reoccurring than replacement of the spring.

 

Raise the vehicle on a frame lift-type hoist.

Inspect the springs for damage. If none is found, proceed to the next step.

Pressure wash the rear leaf springs to remove as much dirt and grit as possible.

Dry the springs with compressed air.

 

 

 

Apply a liberal amount of grease, GM P/N 12345996 (in Canada, use P/N 10953501), under the front and rear tip inserts for the #2 and #3 leaves, on top of the tip inserts, and in between the #1 and #2, and #2 and #3 leaves, as indicated below. A screwdriver can be used to gently pry up the tip insert; however, a rag around the screwdriver must be used to prevent damage to the spring. Use a flat-bladed tool, such as a gasket scraper to properly distribute the grease.

Lower the vehicle to the ground and test drive to verify the repair.

Please inform the customer that this will offer relief, it is by no means a lifetime repair. Periodic cleanings and grease re-application may be necessary throughout the life of the vehicle.

 

For 1500 Series (½ ton) models only: On vehicles built prior to October 2004, if the above procedure does not correct this noise, it could be caused by an incorrectly dimensioned splay clip (the band holding the ends of the leafs together) that interferes with the leaf springs. A 5 mm (0.197 in) wider splay clip was introduced in early 2005 model year to provide additional clearance. To correct this concern, replace the rear leaf spring assembly. There was no change to the part number.

[dietz4ibanez]

I think that it is primarily from mud!!! I dont know if you all have been in the mud but I have and now I got the squeaks. My brothers titan does the same thing!

I thought that it came from the mounts where the bolts go through the leaf springs I am going to put some lube in each of the mounts and if it fixes it I am going to try and drill/thread wholes for grease fittings....

[1999 Tahoe 4x4]

I don't know if this helps explaining the problem:

 

coincidentally I first developed the squeaky condition after a carwash where my favourite carwash guy ArmorAll-ed the all wheel wells. I think maybe the ArmorAll went to some place where it should not have. Maybe it went to the leaf spring bearings. Maybe, maybe, maybe...

[Norseman]

leaf spring bearings