Front / rear differential fluid drain and fill…..

I had my 2019 with 52,000 miles in for oil change and tire rotation last week. They said I was way past due to have my differential fluids serviced. I am wondering how easy it is to do this myself……I have done it on many other cars but does the tundra need a flush or is a drain and fill adequate? What fluid is best recommended? And does the stock diff cover have a drain plug and a fill plug?

 

Drain and fill. Easy as can be. Will only take a few hours to do it all. Next question you should ask is what fluid to use.

 

Easy to diy

yes for drain and fill

I would suggest replacing the crush washers as most people do where applicable

I’ve used redline and seems to be working great

 

Ok great. I have used amsoil and royal purple in the past on other cars / trucks. Is redline comparable? I will definitely replace the crush washers

 

I bought all the washers from the dealer. You can get a kit on Amazon too. Probably about $5. You can get a kit of the fluids to use on Blauparts. For about $200 you will have all the fluids and washers. There are a few videos on youtube if you are curious.

 

I replaced Front/Rear diff at 30k miles with Mobil1 Gear Oil

$39 75w-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75w-90; I used Ravenol 75W for t-case.

Should be a very easy process. The t-case has a socket plug, so just make sure you either use plumbers paste or plumbers tape - don't over tighten it; tighten just until snug fitment.

If you aren't running any skids aside from the sheet metal stock skid, then you're all set.

Also, order a Slippery Pete pump to make your life a lot easier. Depending on what fluids you use, make sure you buy the correct Slippery Pete fitment so that way, you can just screw on the pump and pump away the fluids into the front diff and t-case (rear diff has a lot more open space).

Engine Components Drain Fill
Front Diff 48 ft/lbs 29 ft/lbs
Rear Diff 36 ft/lbs 36 ft/lbs
T-Case 26 ft/lbs 26 ft/lbs

 

I wouldn't say you're "way past due". Typical dealer hustlin for $$$

I changed mine around 50k miles and it was dark but not anywhere near lookin "overdue"

 

Don't forget to loosen the fill plug before the drain plug. You don't wanna drain your fluid and then realize you can't open the fill plug. It's happened to a couple of people.

 

Torque specs, fluid levels, washer part #s. Everything you need. => https://www.tundras.com/posts/2755506

 

A few hours if you take a two hour nap in there somewhere.

 

I can only assume these are the pre-2014 torque specs because please, PLEASE do not torque your post-2014 to these specs. Even at 18ft/lbs you will feel like your going to crack the transfer case so DO NOT go to 26ft/lbs.

 

I just did this to my '15 for the first time. Super easy. Crush washer kit off of Amazon, Ravenol fluid from Blauparts and a few hours because I took my time. Hardest part was reinstalling the skid plate.

 

mentioned before but replacing your front diff drain bolt with the Lexus version if you're in the rust belt is a good thing. Seems like it can give people problems. I have one on hand for the next change. Of course the original idea to do this came from other people from this site, not my genius.