When to change rear end Fluid?

BigA · 08-10-2006, 06:29 AM

I have an 05 titan with 12,000K do I need to change the fluid or is it good for a while yet?

royr · 08-10-2006, 06:33 AM

I changed my differential fluids on my 05 CC at 7500 miles. I was very surprised how black and cruddy the read fluid was, but the front diff was still fresh looking. I put synthetic gear lube in both - 75W/140 in rear and 75/90 in front. Can't hurt as it is cheep insurance. Who wants to be without there truck for weeks if it does fail anyway. Life is short.

**Helinut1970** · 08-10-2006, 06:38 AM

I changed mine at 1500 miles. But that was when they were not putting synthetic in. So I did it asap with the amount of towing I do.

**HudsonValleyTitan** · 08-10-2006, 07:37 AM

Just follow what your owners manual says. If you tow, change it more often. But you should change it early the first time. 12k is too long.