Haha, you will not blow out seals with too much oil in any engine, transnfr case, or diff. The proper procedure for any transfer case, diff, or manual trans is to fill it until the fluid starts to drip out the fill hole. Even if you coukd stuff 8 quarts in the transfer case, the seals wont "blow out". The only was a seal can blow out is if theres pressure behind it, which there is not present at tge seals in drivetrain parts, un0less you drive a hydraulic powere drivetrained vehicle like a crop fertilizer tractor. Yes, the seals may leak but thats not from more pressure from extra oil. The front output seal on the transfer case and pinion seal on the diffs are under the fluid levels and seal the oil in. Old seals above the oil level may be hardened and weak/cracked which will seep oil if the level is above their level. Pressure is made by pumps, not by oil level. Its not a good idea to overfill engines or automatic trans due to oil aeration, which will kill bearings and sliding surfaces. Even if you overfill the rest it wont really gurt anything, may make a mess if it gets puked out tge vent tubes and past seals not made for being immersed in oil. Follow the recomended procedure to fill to the fill hole, thats the proper level. Even if its a pint and a half more than recomended, its still how the engineers designed it to be filled. That little bit extra, if it is too much, will not blow seals or harm anything. Id rather have a little more than recomended than be under. Oil is also used to cool parts, less oil means less cooling. Not to mention the high speed driving will cause tge oil to be flung away from moving parts, making less available in the sump to lubricate the gears, bearings, and chain. There is a pump in the case that uses oil to feed the bearings, especially the ones above the oil level. Anyway, fill the gluid level until the fluid runs out tge fill hole. It will be at the proper level for that part as the engineers designed it. Someone messed up on the spec sheet at the printing place or the guy writing the manuals was drunk that day. All sources use the specs the manufacturer gives, so if Mopar says its a certain number thats what all sources will state, even if its wrong. Clymer, Haynes, etc go by what Jeep says. Best way would be to contact tge actual company tgat nade tge transfer case and ask them, which is probably New Process, which Dodge used for their trucks and suv models.