Differential oil (front & rear) replacement schedule?

I have 57K on my 2010 Tacoma 4x4 (6-cyl). The dealer reported replacing both differential oils at 30K. I don't tow/haul or use my truck off-road, only occasional use of 4WD in snow or on my steep back yard. Do those fluids really need to be replaced at 60K? Dealer will charge an extra $200 for 60K service with fluid change. Service rep said a lot of owners wait till 100K.

Thoughts on this? Thanks!

 

I just did mine at 28k and it took less than an hour to do them all.

75w-90 Mobil 1 synthetic gear oil from Amazon - $9/quart

6 pack of cold ones - $10

knowing it was done right - priceless

 

I would say to have them done. Diffs are one of the most neglected items on a truck, and one of the most important. I have always changed my gear oil every 30k and I've never experienced a problem with them on any car/truck I've owned. Don't forget the T-case too, just need oil and a handful of crushwashers.

 

30k - front diff, rear diff, and transfer case with amsoil severe gear.

I change my tranny fluid during this service as well.

 

Maybe I'm too lazy or cheap but when I change mine, I just wrap the threads of the plug with some Teflon tape. I've never replaced the crush washers and I don't have an seepage......well, on my truck anyway.

 

+1 for Amsoil Severe Gear 75W-90.

 

I changed mine early too with Redline 75W-90. I also re-used the gaskets with no leaks. Next one will get new gaskets.

Here is the complete six gasket set for $8.

$12 GENUINE TOYOTA GASKET KIT FOR TRANSFER AND DIFFERENTIAL SERVICE

https://www.amazon.com/GENUINE-TOYO...=1485954069&sr=8-2&keywords=toyota+gasket+kit

 

30K Redline 75-90 front, Redline 75-110 rear.
just FYI, one aggravation to doing this work is crappy hand pumps and the mess. I finally bought one of these: http://www.northerntool.com/shop/tools/product_200596412_200596412

Best $20 I ever spent. You just need to go slow near the end, or you will get a lot of drain back.

 

Do it yourself, it really is basic and easy. I use Mobil-1, I change my rear every 30K and I did the front and transfer at 60K. Front was pretty nasty but the transfer looked pretty fresh. The rear is always dirty after 30K.

I put 900-1,200 miles on in 4WD so far this winter so i'll probably change my front again before next winter.

 

It's really easy, just do yourself a favor and order all the washers. I ended up ordering all my service parts from Camel Toyota(a vender here) to get me through 90k.

I will say I am buying one of these for next time: https://www.motiveproducts.com/coll...tractors/products/powerfill-pro-1-gallon-tank

Saves on the mess and it'll still save money.