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75w140 gear lube

Started by flyinlow, October 24, 2010, 08:20:55 PM

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flyinlow

October 24, 2010, 08:20:55 PM
My 2004 Ram 4x4 (3.92) uses synthetic 75w/140 axle lube. My 8 3/4 (3.55 SG) in the Charger uses 80w/90 synthetic. The Charger:s axle has some whinning at 55mph. Would the heavier lube help with the noise? Any draw backs?

firefighter3931

#1
October 26, 2010, 01:05:31 PM
I run 85/140 (non synthetic) severe duty axle lube in the Dana....no problems to date.  ;)

Quiet as a mouse...the rear end that is, not the car !  :lol:


Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs

flyinlow

#2
October 26, 2010, 03:59:08 PM
Quote from: firefighter3931 on October 26, 2010, 01:05:31 PM
Quiet as a mouse...the rear end that is, not the car !  :lol:


Ron



Yea I'd like to hear it!   Probably will try the heavier stuff.

Ghoste

#3
October 26, 2010, 04:00:36 PM
How do you know the rearend isn't making noise and you just can't hear over the exhaust? :nana:
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