Diff Fluid: "Trac-Lock Requires an Additive"
#1
JK Super Freak
Thread Starter
Diff Fluid: "Trac-Lock Requires an Additive"
I'll be changing my differential fluid tomorrow. The owner's manual says "Trac-Lock requires an additive." Any idea what this is referring to? Chrysler doesn't say in the manual. I've got the slippy diff in the rear. So apparently there's an extra small bottle of something that I need to add? And if so, how much? And do I subtract that amount from the oil I'm adding? Thanks in advance.
#2
So you have a limited slip, yes? Then you need to add friction modifier to it to help the clutches slip when turning. However, MOST full synthetic gear lubes incorporate these additives already.
#3
JK Super Freak
Thread Starter
Mobil 1 Synthetic Gear Lube 75W-140 LS contains special friction modifiers designed for limited slip-type differentials. In most applications, the addition of special LS (limited slip) additives is not required.
#6
JK Enthusiast
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So would it be overkill to get the LSD additive from Mopar? I talked to a transmission shop who I've been going to for years and he said he would still put the LSD additive in it so it doesnt make sounds.
#7
It also would be less effective when you actually want the limited slip to attempt to power both wheels. The friction modifier allows the clutches to slip when turning and not chatter, it's walking a light between traction to both wheels, and comfort of daily driving. The more you add, the less traction you could potentially have between both rear tires.
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#8
JK Jedi Master
It also would be less effective when you actually want the limited slip to attempt to power both wheels. The friction modifier allows the clutches to slip when turning and not chatter, it's walking a light between traction to both wheels, and comfort of daily driving. The more you add, the less traction you could potentially have between both rear tires.