Re: REAR DIFFERENTIAL ISSUES on FJ 2007
I sure hope that '07 wasn't still running the factory gear oil.
I did an initial gear oil change at only 1,200 km and my rear axle gear oil was already black. I followed up with back-to-back rear axle gear oil changes to flush everything out using a cheap 80W-90, then refiled with Mobil Delvac Synthetic 75W-90
My '07 barely has 60,000 km on it now. I got into the habit of changing the rear axle fluid twice a year, everything else once a year. From the initial change, the front axle and transfer case stayed clean
Several weeks ago I did the routine gear oil change. Front axle fluid looked new, along with the TC fluid, so I think I will now stretch it to every two years.
Rear axle fluid also looked almost new. Think I will stretch that to a year and see what happens.
In particular, for the FIRST time there was nothing on the drain plug magnet. Either that is one hell of a long break-in for a rear axle, or maybe something has changed inside
My rear axle had a slight "hum" from the factory. After the initial gear oil change the hum went away. The axle is very quiet
2007 Toyota FJ Cruiser 5AT "C" package, Sun Fusion
2012 Chevy Impala LS, beige, 3.6 direct injected V6