66 c60 transmission fluid?

[mike_66_c60]

Hey guys i am going to replace fluid on my truck since the brakes are all fixed. what kind of transmission fluid does my transmission take and where do i fill and drain. it has the pto attached to it for my dump bed. i am going to degrease it tmrw and take some pics. thanks.

[Robert1970C20rstbukt]

Regular 80W90 GL5 gear oil, will work just fine.

[Nobighurry]

Drain plug should be on the bottom and the fill will be on the side. My pto is mounted on passenger side, I filled on drivers. I took a piece of clear hose, maybe 1/2" and connected it to a funnel. Made adding fluid super easy. Of course you can buy a hand pump.

[luvmytruck]

Originally Posted by mike_66_c60

Hey guys i am going to replace fluid on my truck since the brakes are all fixed. what kind of transmission fluid does my transmission take and where do i fill and drain. it has the pto attached to it for my dump bed. i am going to degrease it tmrw and take some pics. thanks.

do not use 80-90 wt without checking trans manufacture specs my dana spicer required special 50 wt and someone had put in the wrong oil causng it to always grind into gear If you have a 5 spd spicer I can send you copies of the manual that says what oil to use gary

[mike_66_c60]

thank you, mine is a 4 speed, pto is on the driver side, i found the drain plug and fill.