Plastic Diff cover D60????

[scoops77]

Hey everybody, I'm new to the site but am somewhat fimiliar with diesels - even though this is my first to own. I've built a bunch of North Texas mud trucks and a few mall-crawlers but i have never seen or heard of anything like this... My front diff has been leaving a drop or two of oil everytime i parked somewhere, so over the weekend I got under there to top it off and while I was wiping down the cover to clean all the s*** off of it, I realized that was the ring gear looking back at me - not my big ugly mug! Without taking it off to inspect it until my new gears come in, it looks to be approx. 3/16" - 1/4" thick clear plastic (almost like hazy plexiglass). I'm a little nervous to keep this on here because it looks like any little bit of flex or twist the axle housing does or any small rock or nail, etc. is gonna put a serious crack through it and more than likely ruin my day. Anybody seen these before or have any knowledge on them??

(oh yeah - it was clear enough to read the gear ratio, s/n, and p/n on the ring gear WITH the new oil in the diff!)

I did a little searching before I posted this but couldn't find any info, just let me know if i need to delete the posting

[Powerhead357mag]

ive heard that they are just as strong and the metal ones but they do leak if everything's not perfect. i know a few people that have them and don't have issues. Pull it off and clean the mounting surface real good and rtv that sucker on there.

Tim