2018 leaking rear diff

Alright guys... Would you take your ride in for this? What will they do? Is there a tsb someone can post? 2018 TRD OR 4,800 miles.

 

I would. It's not dripping, but you'll at least want it documented. I imagine it'll get worse. I remember this was an issue with 16's and some 17's but thought this was cleared up by the 18s. I believe they replaced the seals.
Where was your truck built?

 

There was a recall for earlier years. Something about the bolts not torqued to spec. I'm not sure why your even asking the question if you should take it back. That is a critical malfunction in the manufacturing process that if left could result in catastrophic failure. TAKE IT BACK IMMEDIATELY

 

Agreed... take it in... thats the look of a high mileage diff, and its supposed to be new.
Make em fix it.

 

CATASTROPHIC I TELL YOU

 

Texas 8/18

 

I was told by a Toyota dealer's service dept. that ... once the truck is brought in for a rear diff seal leak ... they have to keep it until it is fixed for safety reasons.

They were keeping some trucks a long time due to the lack of diff seals in the system.

Dealer said ... they give out free rentals for those problems.

Checked my diff and it was OK.

 

I was just about to ask if they would give me a loaner while they mess with this.

 

If you're under warranty pretty sure they have to

 

Truck hasn’t even hit 5K miles yet.

 

.
...^^^... They will give you a free loaner.

 

You're good to go then!

 

How long does the fix for this normally take? What all do they do?

 

Seems like barely a seep. I'd let it go rather than have some dealer messing with my dif.

 

Eh with only 5k its bound to get worst. I had a seep from my rear main seal and didn't find it and have it addressed until 70k miles, cost $1200 to replace. Worth documenting and having it fixed now rather than down the road.

 

Mine looked like that at 5K too, and then it dried up and went away, I think some of it is just some grease from assembly.

 

I took these pics at 5k, that stuff wore off and it's still totally dry today with 20k.

 

Mine look like yours OP, but unlike @shakerhood mine got worse. They kept the truck 38 days waiting on parts. Gave me a loaner Nissan frontier from enterprise rent a car. Fix was new third member housing, gasket/rtv, oil, and rear brake assmbly.

 

Just brought mine in with 6k looked the same... they said it was from manufacture and tightened the bolts...

 

I would retorque the bolts and add 5 ft/lbs and clean it up with brake clean and see if it comes back. If it leaks again, then you know you have a real issue. Why waste your time if there is no need to.