so what kind of fluid do you guys use in your lsd rearends? and is it relatively easy to change? how do you go about doing so? and what brand names do you all trust
lsd fluids
- Thread starter giterboosted
- Start date
It is really easy to change. Redline 75x90 works well. Remember to add friction modifier too. Get some sort of fluid pump to make the change even easier.
Red line 75W-90 already has the friction modifier in it's formulation...it does not need any additional. If you use Red Line 75W-90NS, you will need the modifier and can "custom add" to suit your LSD. A note on using Red Line...on some high mileage, worn LSD's it *can* induce clatter. It's going to depend on the condition of the clutch pack in the LSD. Ford 75W-90 gear oil is an alternative...you will need the Ford friction modifier additive if you go with this oil.
Get a StuLube Pump and a gallon of washer fluid. Pour the washer fluid into your reservoirs or into your neighbors cars too, and pour the oil in there and use the pump. Makes life very eazy.
would a simple siphon work, my dad works at a lawn mower shop and can get me one for free, also im planning on using some mt 90 in my tranny very very soon, would thins be a good idea to use on my lsd also as long as i use the friction modifier?
+1 on the Ford lsd oil.
You need friction modifier with the Ford synthetic? I thought they started mixing it in a few years back... now if only I could remember where I read that.
You need friction modifier with the Ford synthetic? I thought they started mixing it in a few years back... now if only I could remember where I read that.
giterboosted;1007201 said:
I don't see why not for free. Us people who have to buy stuff come up with our own solutions.
GrimJack;1007245 said:
I don't use the synthetic.
If I had the diff rebuilt I would, but I don't want to induce chatter...
i have a cusco 1.5way RS type in my car, i havent broken it in yet. what fluid would be best for me and should i add friction modifier ?
redline made my diff a lot louder... never really thought about it, but especially when its cold... i should probably check the fluid level too now thats its been a few hundred miles...
but the ford 75w90 is just as good though?
but the ford 75w90 is just as good though?
.Rennat;1009274 said:
I'd say so with the +1 from two different members
thats what i'll get myself.
GrimJack;1007245 said:
When I went to ford the parts guy told me that the XY*80W90*QL was the non-synthetic blend. The ford XY*75W140*QL is the synthetic product.
The back of the bottle on the XY 80W90 QL reads " add ford friction modifer for LSD"
If you do a google search on XY 75w140 QL you will find that there is a TSB on chattering ford rear ends. They Remedy the problem with the synthetic fluid XY 75w140 QL and they add the friction modifer XL3 as well. Seems like the friction modifier is a fix it all for ford.
I used the non synthetic and added the friction modifer XL3 and all is well.
man, so many responses but so little sureness.... where can i get my hands on some ford, i did the price check on the redline for the tranny and the lsd andit came out to about $65
^^^ LMAO
http://store.summitracing.com/partd...1&part=RED%2D58204&N=700+115&autoview=sku
Summit shows Red Line 75W-90 is $9.75 a quart...you need 2 quarts. You don't want to use this oil in the tranny (it has friction modifiers in it)...MT-90 is what you want to use...you'll need 4 quarts ($8.95 each).
http://store.summitracing.com/partdetail.asp?autofilter=1&part=RED-50304&N=700+115&autoview=sku
http://store.summitracing.com/partd...1&part=RED%2D58204&N=700+115&autoview=sku
Summit shows Red Line 75W-90 is $9.75 a quart...you need 2 quarts. You don't want to use this oil in the tranny (it has friction modifiers in it)...MT-90 is what you want to use...you'll need 4 quarts ($8.95 each).
http://store.summitracing.com/partdetail.asp?autofilter=1&part=RED-50304&N=700+115&autoview=sku
TaSe;1009584 said:.
I'd say so with the +1 from two different members
thats what i'll get myself.
+1 to that +1..
But i'm going to use redline this time around.