I had a pretty good leak coming from the T-Case in the front driveline output shaft area. I replaced the seal for the output shaft, but after putting it back together and replacing the fluid, the leak came back. I looked a little closer, and the case looks cracked in an area, and it looks like thats where its leaking from. Now could I.... seal up the crack with some sort of sealant (e.g. JB Weld, epoxy of some sort). Weld the crack shut with my MIG and an argon mix, or is this something where Im going to want to just replace the entire case? Lets say that I do replace the case (Id hate to spend the $). My '89 has a np241. Can I bolt in a 208 as well? Thanks for the help.