I just swapped in an axle with a powr lok, it is great! Anyway, is it required that I ad some friction modifier, or will I get better traction without it? I am worried that if I don't add any I will end up eating the clutches up soon. I remember hearing someone say to keep adding an ounce at a time until it slips on tight turns... So I figure without any it won't slip? Any help is greatly appreciated!

 

Add the friction modifier without it the clutches can chatter real bad and send that shake into important parts. I think it is just worth it.

 

FWIW, I'm running the stock LS with NO additive and NO chatter. There's no ill effects that I can see of feel after 12k miles.

brandon.

 

Mine chattered wickedly when turning sharp and slow when I tried no additive. I mean real bad, it was violent. But in my case, I rearranged the frictions and steels from the stock arrangement (which dissables over 80% of the effective area of the clutches intentionally ) to the proper arrangement, so I have much much more friction surface. Half a tube of additive and its much much smoother, although you can feel it a tad when turning sharp and slow. I have never ever ever only spun one tire either, its allways TWO black lines ont he ground....



KP

 

Well tell that to the people that owned my previus 24v. I had to drop 600$ for new spider gears, speed sensor ect when 2 of the spider gears broke and messed up the sensor and the sensor ring. I just lickily got it before it got to the ring and pin.

 

Trak Loks are somewhat more forgiving when running them without additive but as an owner of many Powr Loks over the years, I can tell you from my experience that they are no where near as forgiving. Since the clutch loading can be several times higher on the Plok because of the cams on the spiders, the Plok can lock up and chatter quickly and violently as 600 Megawatts mentioned. I always add just enough additive to stop the chatter and no more......it sometimes takes a few tries to get it just right as you don't want to put too much in. Tloks operate on a preset amount of preload and as the clutches wear, the preload decreases over time......because the clutch loading does not increase as more torque is applied to the Tlok like it does on the Plok, the chatter experienced can be considerably less and almost non-existent on a Tlok with only partially worn clutches when not using an additive. The bottom line : Your Tlok or Plok will last much longer when using the appropriate amount of additive because any amount of chatter is causing clutch wear. If you have no chatter without any additive, your LS is wearing out and the clutches are not getting the appropriate amount of preload/loading to perform to their potential.

 

They all require modifier but there is no set amount. It all depends on the type of fluid you use and the amount of wear on each individual differential's clutches.
I prefer not to use fluid that says it doesn't require modifier and add my own in small increments.

 

I prefer to do as Bill mentioned, but it's VERY difficult to find a SYNTHETIC gear lube that doesn't already have the friction modifier in it.

The Redline shockproof oils have lower FM levels than other synthetic gear lubes. Shockproof oils have 3% modifier, while their regular gear oils have 5%. I called Redline to ask.

I dunno about other oils, but most of them seem to be pretty heavy on the modifier. Most of them turn my diff into an open diff. What a worthless LSD it is from the factory!

jlh