which gear oil
Thread Starter
|
Senior User
Joined: Mar 2004
Posts: 281
Likes: 0
From: Buena Vista VA
which gear oil
this might be a dumb question but im gona ask it anyway i just got a polished aluminum diff cover for the rear of my truck the gear oil it calls for is a 75-140 full synthetic which is about $14 a quart at advance auto i was wondering if 80-90 would be ok in it with a bottle of limited slip additive thats what they run for years im just not crazy about spending $50 in gear oil when i aint got that much more in the cover itself
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Originally Posted by countrysF250
this might be a dumb question but im gona ask it anyway i just got a polished aluminum diff cover for the rear of my truck the gear oil it calls for is a 75-140 full synthetic which is about $14 a quart at advance auto i was wondering if 80-90 would be ok in it with a bottle of limited slip additive thats what they run for years im just not crazy about spending $50 in gear oil when i aint got that much more in the cover itself
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
Originally Posted by Kwikkordead
Don's skimp on the gear oil!!! With the massive torque that the PSD makes you'd be surprised at how hot the rear axle gets.
Senior User
Joined: Jan 2004
Posts: 390
Likes: 0
From: northern Maine
I just put in Royal purple max gear 75/140 in my rear. and i switched the atf in my manual traney to Royal Purple syncromax. I used to have trouble shifting before i switch, now i can actually speed shift without grinding gears. Best thing i ever did is to stwitch to RP.
Thread
Thread Starter
Forum
Replies
Last Post
thundersnow70
1957 - 1960 F100 & Larger F-Series Trucks
9
Feb 20, 2012 03:29 PM
