you have an axle seal leak and a leaking front dif cover on currie axles and you posted a bad sellers thread about Genright? LOL.
I'm honestly baffled that someone would spend 40K on a build and come one the internet to whine about oil leaks. fucking wrangler people.
on to your issues, Replace the axle seal in the rear and quit bitching. I'll give you that Genright owes you a seal and the labor to fix it since you bought the axles assembled through them.
as far as the front goes, a lot of people have that setup without leaks. that leak issue is your installers problem. they managed to fuck up the cover somehow. have them weld you a new cover bolted to a welding table or to a housing so it doesn't warp.
If it were mine, I'd countersink the cover and run Conical washers with Grade8 bolts to lock the cover in place. same way I do all my difs. also,you should use a lube-locker gasket instead of a gasket maker "just in case" the cover shifts, it shouldn't cause a leak once you tighten the bolts back down.
Currie is Smart. they don't deal with the public so they don't have to deal with the complaints.
However, I have called them multiple times with questions about products and have had nothing but great service. I have had them sell me parts direct before, but they generally want me to go though a vendor.