drilling the front diff
5 Year Member
Joined: Mar 2018
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I used my Harbor Freight compressor-driven brake bleeder to evacuate my front differential. It worked really well. I have to move the truck a few times to get the gears in the right spot to make it easier to fish in the hose. I purchased a rear differential plug at the dealership and replaced the non-magnetic one in the front.
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Dielectrically 5w30
Joined: Jan 2020
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From: Oregon
The mag plug is a good idea, the suction, well it worked on mine, but it leaves so much in there that you need to do a flush fill and drain/suction again.
Senior Member
Joined: Aug 2022
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Hi everyone,
When searching for this amsoil SEVERE GEAR or Royal Purple 75W-140, all I see is with friction modifier/additive for limited slip differential. Do they make this lub for none limited slip?
Thanks.
When searching for this amsoil SEVERE GEAR or Royal Purple 75W-140, all I see is with friction modifier/additive for limited slip differential. Do they make this lub for none limited slip?
Thanks.
Last edited by rnln; Oct 7, 2022 at 05:55 AM.
5 Year Member
Joined: Nov 2018
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From: Calgary, Alberta
Dielectrically 5w30
Joined: Jan 2020
Posts: 13,263
Likes: 5,463
From: Oregon
Yeah, those oils are likely good for use with friction modifier, no issues using in an open diff though. I don't recommend the Royal purple gear oil over the Amsoil for the 75w140 though.
Dielectrically 5w30
Joined: Jan 2020
Posts: 13,263
Likes: 5,463
From: Oregon
No idea what your vehicle is or what your application is, which diff are you changing the oil in and what is the vehicle? And no, wouldn't worry about the synthetic part anyway.
Dielectrically 5w30
Joined: Jan 2020
Posts: 13,263
Likes: 5,463
From: Oregon
The above assumptions all being correct, I don't think you can go wrong with the Amsoil severe gear 75w140.
