Rearend fluid

[seanfletcher]

I have a question, I was calling around town to see if some places did rearend fluid changes and I got answers from 1 of the 2 I call. One place said they didn't do it because there was some additives and "stuff" that the dealerships put in there. Is this true and if so can someone tell me what this is so I don't have to pay 100 dollars for the stealership to do it. I have a 2002 F-250.

[Dave]

There are additives if its a limited slip rear otherwise i dont think so

[seanfletcher]

prolly a dumb question, but how can you tell without other wise doing a burn in my driveway

[Jeff_Northon]

A real transmission shop will know what fluids are needed. I had my truck in three years ago for a change of all fluids, I should do it soon, come to think of it. A real transmission shop will rebuild, replace and repair all transmission and other gear things.

[Dave]

check the axle code on the door sticker if there is an L in between the 2 numbers you have a limited slip

[seanfletcher]

Well thats why I was wonderin. I am leaving town in a couple of days and I would do it myself if I had the time, and I would rather not get stuck on the Interstate 200 miles into my 1000 mile trip because some dumb$#!* didn't know what they were doing.

[seanfletcher]

I just checked the door and low and behold it is unreadable. Anywhere else I can look?

[ipz2222]

Owners manual.

[SDDan]

Look for a tag on the axle, most, have the axle code stamped on the tag by the diff..

[720Deere]

Actually I would say the dealer isn't ripping you off at $100 if they use the correct oil. Synthetic 75W140 is called for in the rear diff and it takes about $50 worth of oil to do it. Add about 1/2 hour of labor to that and you should be close to $100. I prefer to do it myself, but if you want it done right maybe you should just go to the dealer.