Differential Drain ?

[902066]

Changing gears from 3:73 to 4:10. While I am at it I wanted to add a drain for the lube. Thinking about going quick and cheap, by drilling a drain hole in the carrier and using the Bat Wing bottom bolt as a drain.
Question is how well does this work, and does the Bat Wing cover bolt ever develop a leak? Going to use The Right Stuff RTV for the cover sealant. Thanks Jim

[Dynomite]

I would not complicate it............Just drill and use a 1/8" pipe tap for a 1/8" Pipe Plug as shown which gets you at the Bottom of the Differential Case.

See Item #4 LT5 Added Systems (http://forums.corvetteforum.com/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-8.html#post1587644226)

I placed the Differential Drain Plug just on the Drivers Side of what I call the Molding Seam in the Center of the Flange Thickness.
The kit provides a template that puts the hole just left of the center bolt in the valley of the differential.
Original Photos provided by Scrrem on another topic with Red notes added.

http://i287.photobucket.com/albums/ll142/dynomite007/DiffCaseDrainTap3.jpghttp://i287.photobucket.com/albums/ll142/dynomite007/DiffCaseDrainTap2.jpg