08 Tacoma Gear Oil Replace

How many mile before I try to replace gear oil, does it really matter?

I have 151,000 on it now

 

here is a really good place to start for maintenance.
I purchased my 09 in June did some water crossings and playing in the mud. and mine still beautiful and a "honey" gold color. no "milky" discoloration or any worse smell then the fish like smell
2nd Gen DIY Maintenance Quick Reference Guide | Tacoma World

 

If it hasnt been changed your WWWaaaaaayyyy overdue...

 

This.


Changed mine at 5k miles, then at 30k and every 30k after that. Cheap insurance. First two changes (@5k and 30k) were quite nasty with break in metal shavings.

If you have gone 150k without touching the rear axle, id expect to see failure of pinion bearings soon if not already happening.

 

You didn’t say what model you have?
08’ had a mechanical LSD in some of the differentials, others were open.
You may need LSD additives.

I’d also recommend NOT going with synthetic if it has the LSD diff.

If it is an open diff. Pick one and pour it in.

 

I am surprise he has not blown an axle seal.
My seal forced me to change the fluid.

 

Someone posted a Lexus replacement plug, better quality than the stock Toyota.

Also make sure you can get the fill plug off before draining.

Others have posted using the bags of oil is easy. I used a bottle pump, which sucked, or I should say sucked poorly.

 

Yep, yur due!

 

Overkill but it’s your time and money, all good

 

The two changes (5k and 30k) were absolutely critical. The fluid that came out was disgusting glitter filled. One could probably be a little less consistent after that but why?

As someone who has had a family member neglect rear axel fluid on an 07 4runner that chewed through pinion bearings resulting in not only pinion bearings, but ring and pinion gears and carrier bearing needing replacement (along with the vehicle downtime) to the tune of like 1k+$ ill gladly spend ~150$ extra in fluid over the course of 300k miles to do rear diff fluid changes at 30k mi vs say 60k mi intervals.