how to change diff Fluid?

[komedy]

just wondering if it is the same process as changing the transmission fliuds?
does it have its own drain and fill plug? any info would be grateful.

thanks!

[blu808]

If you are behind the car facing towards the front. Look under the car. You will see the diff hanging down. At the bottom of the diff you will see the drain plug.

1. Loosen the drain plug with a 1/2 inch socket wrench and let the fluid drain.

2. Re install the drain plug with some rtv on the threads.

3. Loosen the fill plug on the side of the rear diff cover. It is about 2 inches higher than the drain plug.

4. fill the diff with 75/90 gear oil, using a hand pump which you can purchase at any auto parts store.

5. re install the fill plug and your good.

[sideview_180sx]

if you can't understand this, then go pay for someone to do it instead.

[g6civcx]

Check #1 in sig. MA and MT sections for reference.

Make sure you can get the filler plug off before you start draining. If you can't get the filler plug off, don't drain it.

It's also a good idea to get new filler and drain plugs from the dealer.

[komedy]

lol i understand it. thank you

[Nizzan4u2nv]

To make life easier, i suggest this setup. Works very well for me. Put one end in the bottle and the other in the diff and drill away. Everything was purchased at home depot. All you need is:
1. Drill pump
2. pump to hose fittings
3. hose
4. if you dont have one already, a drill

[AznXstazy]

Originally Posted by Nizzan4u2nv

To make life easier, i suggest this setup. Works very well for me. Put one end in the bottle and the other in the diff and drill away. Everything was purchased at home depot. All you need is:
1. Drill pump
2. pump to hose fittings
3. hose
4. if you dont have one already, a drill

how much did that cost? also is it called a drill pump? like i ask someone where can i find a drill pump at home depot. good idead btw.

[blu808]

Yes. Nice drill pump.


Anyways. Racing oil is only meant to be operating at certain temps. Usually a heavy racing gear oil can make the tranny feel clunky, and grind (if worn) Until it heats up.


For the stock open diff just run whatever you want. It doesnt matter. Any 75w/90w will do.

[Nizzan4u2nv]

Originally Posted by AznXstazy

how much did that cost? also is it called a drill pump? like i ask someone where can i find a drill pump at home depot. good idead btw.

Everything was about $25 I believe. The flotec one in the picture is the only one I found at home depot. The fittings and hose was in the same area as the pump(pluming section).

[komedy]

nice.
by the way, anyone use redline heavy Shockproof oil for there SR20DET diff(nonlsd). thats what im planning to use. ive searched and saw that no one uses it but phase2 sells them for the diff and tranny?

is it alright to use the heavy shock proof for diff fluid?

[kandyflip445]

^^^Thats cool.

[komedy]

crap just found out the heavy shock proof is for heavy race use. im only using it as a daily driver and my car is stock.
anyone want to buy 2 bottle of heavy shock proof or trade them for other redline diff oil? pick up welcome

let me know at [email protected]

thanks

[wntrcoatblu240]

that drill pump is a great idea... next time when i change my diff fluid, it won't be as difficult.... *thumbs up*

[blu808]

Flying rat gives everyone with drill pump pos rep.