How do you guys add diff fluids?

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Mar 15, 2010 | 12:20 AM

#21

JoeHemi

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From: Pierce County, Wa

A LSD 9.25 needs 75W-140 with an additive. The additive is already in the fluid if you get Mobil 1 and RP. The front only need 90

Mar 15, 2010 | 01:01 AM

#22

rocket23

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From: connecticut

Quote:

Originally Posted by JoeHemi

A LSD 9.25 needs 75W-140 with an additive. The additive is already in the fluid if you get Mobil 1 and RP. The front only need 90

do you know why the heavier oil 140 is like gravy. I dunno why any clue why the different lube??

Mar 15, 2010 | 01:12 AM

#23

JoeHemi

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From: Pierce County, Wa

Well, aside from that is what the manufacture recommends for the 9.25 rearend, the 140 will help in keeping temps low if you are doing any kind of towing or using the truck harshly. That's why Dodge allows the 90 up in the front diff since it's not as adversely affected.

Mar 15, 2010 | 01:18 AM

#24

rocket23

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From: connecticut

gotcha makes sense now Thanks for the knowledge.

Mar 15, 2010 | 01:44 AM

#25

AlbertaRAM

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From: Ottawa, ON, Canada

Quote:

Originally Posted by dirtydog

I use a suction gun. Holds about 3/4qt. I can squirt fluid in a hole above the muffler and through the floor if I had to....lol
Paid $15 for it

Sounds interesting!!
Any pic or a web link to something similar?
Thanks!

Mar 15, 2010 | 01:46 AM

#26

AlbertaRAM

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From: Ottawa, ON, Canada

Quote:

Originally Posted by JoeHemi

Off topic maybe? HAHA

Senseless, most info you can find up in the FAQ section. Also, if you go to Amsoils website and enter in your info, it will give you capacities and types. This is another great site to visit.

To the OP; I just used Mobil 1 full syn in the diffs. The bottle, like RP, has a tip on the end. I just snipped off the end and the bottle itself acts like a funnel.

Even with that type of bottle there is no chance in hell it would fit in the front diff on my truck haha! Hell even the back would be hard unless I took down the spare tire.
If I tried that the bottle would be parallel to the ground at it's highest point before hitting something... meaning almost no fluid would come out.

Mar 15, 2010 | 01:52 AM

#27

JoeHemi

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From: Pierce County, Wa

It looks like this I got a couple from harbor freight at $5 a piece. Works great, especially when swapping out out brake fluid or power steering fluid. Never thought about using it in the diffs. Guess I always want to wipe out the shavings. It's a good idea though.