Tranny fluid type?

[sirfunkeybut]

I have an 87 with a five speed, well four and an OD, and I'm trying to figure out what kind of fluid I'm supposed to use. The auto store said to use dexron/mercon. I think that's the spelling anyway, is this right?

 

[2813josh]

I think it takes gear oil..that's what the 5spd in my 87 BII takes. It's an FM145

 

[exbass94]

First, you need to find out which transmission you have. See this link for that: http://www.therangerstation.com/tech_library/ManualTransmission.html
If it has the M5OD, then yes Dexron III/Mercon is the correct fluid. All other manual transmissions use 80W-90 gear oil.

 

[robertc1024]

^ That is exactly correct.

 

[sirfunkeybut]

Thanks for the link! The sticker on the door says,"trans D" so since it says that and going off the chart it's says to use 80-90w gear lube right?

 

[sirfunkeybut]

Am I going to hurt anything running it with this thinner stuff?

 

[holyford86]

Am I going to hurt anything running it with this thinner stuff?

yes, you'll burn the trans up if you use atf in a trans meant to use gear oil.