I have a 05 LE CC 4x4 non BT and had it into Nissan and they stated that both seal were leaking and when they removed diff cover there was water mixed in with fluids. Their recommendation is total replacement for 4k. Obviously that's happening. I've seen that the 08+ are direct replacement for 04-06 as long you match gears, locker etc. Does the wheelbase or 4wd or 2wd come into play? I've found an 08 with 2.937 gears like mine with no locker but it's for 159 wheel base. I'd think there is no difference but want to make sure. Any help would be appreciated. Thanks.