I need a new differential rubber cover plug for my 9-bolt rear end. The local GM parts guy says the part number is 10041025, and it's discontinued. Does anyone know where I can find one, as gmpartsdirect.com doesn't carry it.

Thanks.

 

Well, the search is off. I decided that since I'm not getting anywhere I'm going to buy the TA Performance 9-bolt cover. At least it has a screw-type filler plug and not a rubber one.

 

You could always just go to the parts store and buy a transmission pan drain plug from in the Help! section. No point in outsmarting yourself, or doing some kind of extra work or something drastic like that.

 

the correct number should be 10033568 and it's still available. there are 8 dealers alone in california that show it in stock.

 

How could the part number be that far off? This is the 9-bolt you're talking about, right? And is the gasket (12523445) the correct part number?

 

the number he looked up is right next to the number you needed in the picture. the number he gave you is for the cover bolts. i'll have to look up the gasket number in the morning as i just left work a little while ago.

 

Oh ok, that makes sense. The gasket is probably correct then, because gmpartsdirect lists it as a gasket. Thanks for the help.

 

12523445 looks to be the correct number for the gasket.

 

The correct part number is 10033568 GM says it's discontinued but a local dealer might still have it in stock.

 

That's where I got the diff cover plug for 1 of my 9-bolt rears........... the AutoZone HELP! section; It was a perfect fit.

 

I hope they got it figured out back in 2006.