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2002 chevy trailblazer_lt
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1,699 Posts
This is the shim number 32 in my diagram (This number corresponds to your VIN )

View attachment 57909

View attachment 57910
How curious. That "shim" sure does look like a blue viton O-ring to me.

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And the part #32 called out in the diagram you posted looks like the newer design, orange gasket that replaced the O-ring and encompases the bolt hole.
 

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2005 gmc
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1 Posts
Does anyone have the part number for this O-ring? Pulled the pan to clean and check the pickup tube. When installing I felt 0 resistance from the O-ring. Don't want to put it back together with replacing it.

Thanks, tried finding it but running out of options. Besides calling the dealership ofcourse
Take the O-ring to an auto parts store like AutoZone and have them match the O-ring if you cannot find the part number provided to you.
 
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