Front and rear gear oil

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westcoasting

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What s a good lube ( not Oem) for front and rear diffs and / what brands to stay away from please :)
 

ThunderMug95

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Yep, whatever you put in of the above mentioned fluids will be great. Outside of warranty period of course I suppose.
I just did the trans this morning…Used Valvoline MaxLife.
 

Burla

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Stay away from RP, Lucas and Mopar. I would use super tech over any of these.

I use redline with slippery pete pump, amsoil ss just as good and if you get ss with bags you wont need a pump. 75w140 for rear, 75w90 or 75w85 for front.
 

Burla

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study of gear fluids, it is old but hey you see who takes care when making their stuff from way back. The current spc is gl-5 it must be near 20 years or longer it has been in effect, many of these brands have changed a bit.
 

Wild one

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Both front and rear you used that? Perfect!
My 14 calls for 75W-140 in the rear diff,the only change between 14 and 18 is the EPA/Cafe getting involved,the diffs are exactly the same.
My wifes Challenger has the infamous ZF howl,and calls for 75W-85,swapping the fluid out for 75W-140 made a hell'va differance in the howl, i've since talked a few other Challenger owners with the howling diff syndrome into trying out 75W-140,and all report a noticable differance in the howl,take that for what it is.but i'm not a fan of light gear lubes now
 

HuskerRam

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Both front and rear you used that? Perfect!
I use Valvoline for mine (though the other suggestions are great, too!)...it's easily found at Walmart and you can get four pouches of 75W90 and it'll be enough for both diffs. Also, if you have anti-slip, you won't need the Mopar additive. My next change will be W90 in the front and 140 in the rear.
 
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