Narrowing down the squeaks

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SASKCHEYENNE75

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C10
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350 4bbl
Hello,

I have a 1975 Chev C10 in mostly original condition. Been slowly fixing/upgrading things.

One very annoying issue is the excessive squeaking noise when going over small bumps while driving. I've tried narrowing down the source but having problems with it. Shocks are brand new.

Could it be A arm bushings? cab to frame mounts? Bed to frame mounts?

Any suggestions of things to try based on your experience?? Thanks
 

Vbb199

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Control arm bushings more than likely

Maybe rear leaf bushings
 

Joshua Keith

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Hello,

I have a 1975 Chev C10 in mostly original condition. Been slowly fixing/upgrading things.

One very annoying issue is the excessive squeaking noise when going over small bumps while driving. I've tried narrowing down the source but having problems with it. Shocks are brand new.

Could it be A arm bushings? cab to frame mounts? Bed to frame mounts?

Any suggestions of things to try based on your experience?? Thanks

If you can’t stand on the bumper to narrow down where the squeak is coming from then maybe squirt each bushing with wd-40 or so one at a time to try and pin point it. Don’t forget about the rear springs too. Maybe try shooting some between leafs
 

Bextreme04

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Do not put grease or lubricant between the leafs. Check to see if your teflon sliders are present and in good condition on the end of the leafs. Its also likely to be related to bushings if they are dry. Make sure they are well greased. If you have poly bushings you need t obe using a silicon lubricant. Rubber/kevlar bushings can just use standard chassis grease.
 

SASKCHEYENNE75

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Jarod
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1975
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C10
Engine Size
350 4bbl
Do not put grease or lubricant between the leafs. Check to see if your teflon sliders are present and in good condition on the end of the leafs. Its also likely to be related to bushings if they are dry. Make sure they are well greased. If you have poly bushings you need t obe using a silicon lubricant. Rubber/kevlar bushings can just use standard chassis grease.
The bushings are original. They look in good shape but certainly could be dry and in need of lubricant.
 

SASKCHEYENNE75

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Truck Model
C10
Engine Size
350 4bbl
Control arm bushings more than likely

Maybe rear leaf bushings

Can a person lubricate the control arm bushings? Obviously changing them out is the better option but maybe there is a temporary fix for now
 

Bextreme04

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Can a person lubricate the control arm bushings? Obviously changing them out is the better option but maybe there is a temporary fix for now

I'm pretty sure all the front bushings have zerk fittings on them for grease on a 2wd... It's been a while since I had one though and am not 100% sure. Rear bushings do not have grease zerks, but you an get aftermarket greasable bolts/bushings for the leaf springs for about $100 for the whole set including bushings.
 

SASKCHEYENNE75

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Location
Saskatchewan, Canada
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Jarod
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1975
Truck Model
C10
Engine Size
350 4bbl
I'm pretty sure all the front bushings have zerk fittings on them for grease on a 2wd... It's been a while since I had one though and am not 100% sure. Rear bushings do not have grease zerks, but you an get aftermarket greasable bolts/bushings for the leaf springs for about $100 for the whole set including bushings.
Thanks for the help!
 

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