Upper oil pan gasket.

bigmilkbone

New member
Jun 12, 2023
2
0
1
51
Edwardsburg, MI
I have to replace my upper oil pan gasket. My question is, since I have to take so much off the engine to get this done, is there any parts I should replace preventitively? The rear main seal, for example.
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
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113
Phoenix Az
No gasket on there. Make sure you use some high quality silicone like the ac delco stuff, Honda bond, etc.

Yes replace the rear main. It’s two pieces so remove both parts. Highly recommend using the tool to install it. Verify any other leaks and fix them while you got that trans out. Makes life far easier, specially if on a lift
 

bigmilkbone

New member
Jun 12, 2023
2
0
1
51
Edwardsburg, MI
No gasket on there. Make sure you use some high quality silicone like the ac delco stuff, Honda bond, etc.

Yes replace the rear main. It’s two pieces so remove both parts. Highly recommend using the tool to install it. Verify any other leaks and fix them while you got that trans out. Makes life far easier, specially if on a lift
Thanks