padgett Posted January 9, 2016 Share Posted January 9, 2016 What size are the block freeze plugs for a '90 "C" 3800 ? This is wrong: http://www.amazon.com/gp/product/B0033YK7S0(received 10 brass 1 1/8 565-019 This is confusing: https://www.dormanproducts.com/catalog/hardware2006/ExpansionPlugApps.pdf I need to replace the plugs on the trans side of my '90. What do I need and is there a way without pulling the engine or trans ? Plan to use brass plugs. Link to comment Share on other sites More sharing options...
Guest Rp1967 Posted January 9, 2016 Share Posted January 9, 2016 This a set for my 1995 lesabreThe ones for the side of the block ( at bottom of pick) are 1.5 inch.As for steel vs brass meh,i rebuilt the engine in my 95 and used brass, 7 years later they rotted out and started leaking also. Link to comment Share on other sites More sharing options...
Guest Rp1967 Posted January 9, 2016 Share Posted January 9, 2016 Here is the pic I forgot in the first post.Also I have a special tool to drive freeze plugs in odd locations and I still pulled the engine to replace them.The best part about pulling the engine is you can change the plugs behind the flywheel, they are old and coroded also. Link to comment Share on other sites More sharing options...
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