Front diff actuator

This is the 4th time i’ve replaced the front diff 4wd actuator
Has water in it every time
Usually have to replace it once a year,
I don’t do water crossings
Lots of snow wheeling though
Drives me crazy!
I put sealer on all surfaces and the breather/vacuum hose seems clean on the inside

 

Sounds like you're financially justified installing the fj tube without the disconnect, and investing in some sort of spoofer

When you've swapped these in the past, have you found water in the gear oil at the same time?

 

I’ve ordered the parts for the FJ tube and am going to attempt spoofing to delete my ADD. I can keep you posted on how it turns out if you like. I’m not a fan of things that add unnecessary complication simply to stop something so simple as one driveshaft from spinning which saves at most, 0.5 mpg.

 

Breather hoses mounted high up in engine compartment away from ground level?

 

That sounds like something i’d like to do!
so far I haven’t seen any diff fluid contamination which i’ve been surprised

 

yes please i’d like to know more about this please!

 

Forgive my ignorance, but is this a TRD issue, or do all the 4WD trucks use the same system?

 

i followed it up into the engine bay and everything looks connected and clean on the inside so i’m hoping it’s good

 

to my knowledge I think all 4wd 3rd gens use the add system

 

All the same.

 

What's an FJ tube?

 

Thank you. I'll be following this thread......

 

Manual transmission FJs were AWD, and had a fully live front diff. No ADD, everything spins all the time. The “FJ tube” is the tube that bolts to the right side of the FJ front diff in the same spot where our ADD tube goes on our diff. It is the same overall length and bolts on, so it is a swap option to physically get rid of our ADD. Unfortunately that still leaves us tricking the computer into believing the ADD is still there.