Differential oil

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R.L.K.

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2014 4X4 QC Express 6 speed auto 355 differentials
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Helo all , I'm about to change my differential oils in my 2014 RAM 4X4 QC 3.55 GR with Anti-spin rear end , only towing I do is my boat .

Open for suggestions on oil & additives type and wt.
I know what the owners manual says , I just would like to see what some of you guys are using .
I'll be using Redline oil and likely 75-140 rear with Anti-spin additive and 75-90 front

Thanks for a response !
 
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R.L.K.

R.L.K.

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I would like to know as well!
6b74b7db029acf8f78203d8edb0c9c28.jpg


@ Jdperry , I reposted this over on 4th Gen Engine & Performance due to the lack of responses here in Tech .
A decent amount of discussion there ! Also in the ever popular Syn thread a lot of good reading on oils there as well .

I ended up going with Redline 75-90 in the front and 75-140 in the rear after some research , no anti slip/ limited slip additives required withe the Redline" GL " series oil . It's added already .

Enjoy the read !
 

Jdperry

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6b74b7db029acf8f78203d8edb0c9c28.jpg


@ Jdperry , I reposted this over on 4th Gen Engine & Performance due to the lack of responses here in Tech .
A decent amount of discussion there ! Also in the ever popular Syn thread a lot of good reading on oils there as well .

I ended up going with Redline 75-90 in the front and 75-140 in the rear after some research , no anti slip/ limited slip additives required withe the Redline" GL " series oil . It's added already .

Enjoy the read !



Thanks for the update!
 

dunney

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I'm installing a new LSD out back, and 75/140 with an LSD additive was what was recommended to me.

Of course, I'm still trying to install it, so fingers are crossed.

Good luck!
 

68Malibu383

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Some of the gear oils have the additive in already so no need to purchase additional. Read the label when you buy the oil.
 
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