Rear axle seals leaks. Please report.

I have a 2007 Titan LE 4x4 CC with Tow Pkg but Not E-Locker. Build date is 03/'07. From my (extensive) reading on this subject - I think there were axle changes made beginning 04/'07 - meaning model year '08 I guess ?. There is a ton of info out there regarding replacing the differential with a Detroit TruTrac and even a decent amount regarding the different axle lengths on the E-locker set-ups etc. What is not covered nearly as much is the bearings and seals being a different diameter. The 08 and up have a larger diameter and will NOT FIT into an 04-07 axle housing. The diff end is the same diameter and has the same splines and the length (non E-lock) but the wheel end is different and will not work.
So there seem to be Dana Spicer rear axle assemblies for these that might help solve the problem since they come assembled from Dana with the bearings and seals pressed on, and even including new backing/bolt plates and ABS sprockets. Pull old axle - install complete new unit. Costs more but should be less labor intensive, and should be more reliable. This seems like the best option for Nissan (and even Dana in this case ) to make sure there is at least a good, cost-effective repair option for BOTH types of axles and housings. There would be much less complaining about this very pervasive issue if these options were readily available. The problem is that they aren't. I find it hard to believe that this is so difficult and that I continuously hear things like "well that truck is 9 years old" and "well the titan never sold as good as they wanted it to anyway". This is ludicrous. Heck I just ordered some parts for a 1937 Nash Ambassador.
The part numbers should be
2005994-1 for '08 + and 84776-1 for '04-'07 (these are without E-lock but I'm sure they are out there in the different L/R lengths too for the E-locks)
BUT... the problem is finding them ( and at a decent price ). Dana/Spicer needs to significantly increase the availability of these and Nissan needs to assist them in that effort. This would solve a lot of problems prior to $3K rear end swaps/mods.

I replaced my driver side axle seal myself back around 2012. I have a 2006 2wd. truck doesnt get driven much, 90k miles total, almost 12 years old.

I installed axle vent mod sometime last year and a couple months ago noticed both sides are now leaking, as well as the pinion seal!

Checked fluid, took 20 ounces to fill.

Not sure where to go now. The truck got stuck in some loose gravel recently and a passerby in an older land rover pulled me out. The high torque engine with no posi trac, in loose gravel was a bad combination.

So i would love to install the detroit true trac, but with all the leaks, Im hesitant.

Anybody make a improved aftermarket rear diff / axle assembly for these titans yet? You could get your true trac, change gear ratios if desired, and solve all your leak issues with one swap out of the complete assembly.

huh? has anybody been denied warranty because its out of warranty? Yes. Everybody who is out of warranty is denied warranty.

I would suggest you dont mess with it if its not leaking badly. I have an 06 with low miles. I resealed the driver side 5 years ago, and just recently noticed both sides are now leaking, as well as the pinion seal. I just topped off the rear oil level (it was a good 20 ounces low) and decided ill check it every few months and see how much im losing. The truck sits most of the time unless i'm using it for work or hauling.

I did the rear axle vent mod, dont bother, it does nothing to help. The axle seal job is fairly difficult as the old bearing has to be cut off the axle and a new one pressed on. But since its going to leak again anyway, more than likely, its probably not worth doing