Originally Posted by Rzeppa
These are easy gaskets to replace, but hard to scrape the old gasket and gunga off the old surfaces. Also, do NOT overtighten the two bolts that hold the top half of the housing onto the bottom half, it's easy to strip the alloy (don't ask me how I know this :-)
Word. Also lube up those bolts with your favorite pre-wrenching additive, WD40, etc... pretty well first. It's easy to break those bad boys off in the housing too. don't ask me how I know that.