The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Fel-Pro 1-piece oil pan gasket ('75-'85)

**COBALT** · 01-16-2003, 02:21 PM

I think they call for RTV if you don't (or can't) use the guide studs if I remember right, because the primary reason for the RTV is to keep the gasket in place.

Another critical thing I forgot to mention with this post is the old rubber sealant on the front and back flanges (where the cheezy rubber things go) has to be cleaned off before this thing goes in. If there's residual rubber sealant still hanging around then it will distort this gasket, and it won't fit right at the corners.

01-16-2003, 02:21 PM	#9
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	I think they call for RTV if you don't (or can't) use the guide studs if I remember right, because the primary reason for the RTV is to keep the gasket in place. Another critical thing I forgot to mention with this post is the old rubber sealant on the front and back flanges (where the cheezy rubber things go) has to be cleaned off before this thing goes in. If there's residual rubber sealant still hanging around then it will distort this gasket, and it won't fit right at the corners. __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.