Oil Leak after a t-case drop kit installed

About 4 weeks ago, I lifted my 99 XJ Classic with a RE 3" lift. I used a T-Case drop kit to alleviate any vibes before they happened. I also installed a Engine/Tranny Skid at the same time. On a recent trip, I cracked the stock manifold, so I removed the skid and found a small oil leak dripping from the bottom of the bellhousing. The oil pan is not leaking, infact there is no oil on the engine around that area. This vehicle has never leaked before. It has 101,300 miles on it. the oil was not noticable with the skid on because it never leaked enough fluid to run out of the skid. Grunge just built up. It only leaks after it has been driven. Can anyone give me things to look for? Any idea what is leaking?

Thanks

Check the filler tube.

Thanks, finally got a good look with the help of a flash light and it looks like it may be the rear seal. no signiifcant loss. Only after its driven does it drop a little oil.

Also look around your filter adapter (o-rings inside the adapter may be leaking) or where the wire comes out of the oil pressure sender unit for oil leaks. Ask me how I know!

Eddie

okay, I'll bite, How do you know? Too much frustration or too much money spent.