I had the gears changed from 3:31's to 3:73's. Limited Slip. There's a lot of conflicting info about whether or not to use a posi or limited-slip additive to the gear oil when filling a G80 (Eaton Gov-Loc) differential in a GM truck. Registered. Added slip lock to rear differential gear oil when I changed it out. Highly durable Aluminum Oxide; Creates a slip-resistant surface; Easy to keep clean ; Barefoot-grade texture . Any help would be very much appreciated. Posted by Anonymous on Nov 10, 2012. I left a message with CRC since there is no suggested dosage. Eaton states: "Detroit Truetrac High quality mineral or synthetic gear lubes are required for use in Detroit Truetrac differentials. … I poured the whole 4 oz.of limited slip … Hapco Limited Slip Additive effectively reduces wear, noise, and chatter in differentials. It chattered on right angle turns, especially when hammering it Followed the advice of a tech. Get yours online today and pick up in store. It doesn't help … Oil Type: API GL-5. The tech might be 80 years old, but the performance gains speak for … Parts are just part of what we do. K&W. Quantity: 1 Bottle. It provides increased safety, is barefoot friendly and is extremely durable. Add to cart. It is essential in limited-slip differentials when using non limited- slip API GL-5/6 rated gear lubricants as recommended by Jeep. Comment; Flag; More. I'm trying to find out out how much to add and so far I hear about two to three oz per quart. I did read some info on some aftermarket limited slip additives and most said the same a minimum 1.33 oz. This video shows you how to tell if your rear wheel drive car or truck has a limited slip differential, and also what gears it has. Simply mix 3 oz. Auburn Gear offers limited slip oil additive is designed and recommended for use with all of their limited slip diffs. Don't add more friction modifier additive if the gear lube you add already contains it. TRANS-X POSI-TRAC Limited Slip Gear Oil Additive is designed to quiet chattering differentials and improve gear oil performance. It’s effective enough to get the job done in most scenarios despite not achieving 100-percent lock-up. Some brands of 75w140 synthetic gear lube say you don't need to add any friction modifier for your limited slip axle. I have seen alot of comments about "make sure you add limited slip additive" for the diffs. How a Limited-Slip Differential Works, And Why it Makes Your Car Perform Better. All viscosity grades of Max Gear are formulated with limited-slip friction modifier necessary for some limited-slip differentials. Applications. Jump to Latest Follow 1 - 9 of 9 Posts. Not needed in Gov. The friction modifier additive is compatible with all axles whether they have a clutch-based limited slip or not. And yes, I know there are some diff fluids that already have some mixed in. For Best Results: Add one 4 oz. This Limited Slip Additive is for use in 1987 … If you have a bigger system, you need to use 2-oz per quart of differential fluid.Application. And it instantly felt better. SLIP LOCK -EASY TO PUT IN REAR END . Slippery lubricants are required to prevent chatter, but too much slipperiness causes excess wheel spin, reducing traction. Some of these, such as antifog, chill roll release, and antistat additives, may bloom to the surface much like slip additives. Viscosity: SAE 80W-90. I have done research and found that the 11.5 AAM axle is a Eaton Detroit Truetrac. Of gear oil so stock and aftermarket seem to all be in close agreement here on the 4 to 5 % ratio of limited slip additive to gear oil. Describe the issue. For use with RockSolid® … Bottle; Three bottles required per 10 or 12 bolt rear end; For all GM Positraction limited slip and open rear ends; Positraction rears use posi additive 358-001; Gear … Add Motorcraft XL-3 Additive Friction Modifier to your differential to reduce hypoid gear noise levels and add lubricity when changing the gears or limited slip differential. Unit Package Description. Too much limited slip additive is not good either. (25 ml) of Limited-Slip Differential Friction Modifier" So which is correct and why? Step 1 . Print this page; Share this page × Ad. Had 66 GT that had an Equa-Lok limited slip rear. Slip additives are often not the only additive used in the film. Profile Page. Perform this diagnostic in a parking lot with no other motor … and had him drain it, putting in fresh 90#, adding what he said was the prescribed amount of modifyer and it never "chattered" again. The label on the bottle says Limited Slip on the top corner of the label. Volume: 1 Quart. 7 Ounce Tube. Brand. When both wheels have ample traction, the clutch plates … Here is a limited slip additive readily available in Canada at Canadian Tire. GM Limited-Slip "Posi" Additive 4oz Reviews Return Policy. 3 Related Answers Anonymous . SAE 80W-90 API GL-5 Limited Slip Differential Fluid, 1 Quart by Sta-Lube®. This Limited Slip Additive is very easy to use and apply. I just need to know what wt. A limited-slip differential (LSD) is a type of differential that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts.. No. As to how much friction modifier, you may need none, or one bottle, or at most two bottles - depending on which brand of diff lube you buy. Not needed in Gov. I poured the whole 4 oz.of limited slip … Limited-Slip Axle Additive is a special additive used to modify the frictional characteristics of axle lubricants for use in limited-slip differentials. I'm planning to replace the rear diff oil once the weather warms up a bit and I'm confused about the FM additive. I was running 80W90 before with CRC limited slip additive. Other additives are described in Chapter 4 and include antioxidants, antiblocks, antifog agents, chill roll releases, and antistat agents. The article in the KB says 2 oz, others have said 2-3 oz, but the owner's manual says this: "With a complete drain and refill add 1 oz. I want to change the fluid to Valvoline 75W 140 which is a full synthetic. First, how much should be used? No more shudder in rear differential.. Bottom Line. to a max of 1.66 ounce of limited slip additive per 32 oz. My application is a 14 Bolt 10 … Its a 12 bolt posi. :thumbsup: Only needed in vehicles with friction clutch type posi units. Find Auburn Gear Inc 504102 Auburn Gear Limited Slip Oil Additive and get Free Shipping on Orders Over $99 at Summit Racing! Want Answer 0. Clicking this will make more experts see the question and we will remind you when it gets answered. Clutch-based limited-slip differentials are ingenious devices, but they present a unique problem. For axles equipped w/ limited slip, posi-traction, or traction equalizers, for use in all domestic & foreign cars & trucks . Cancel Submit. This 4-oz tube will be enough to treat a 2-quart system. Additive Usage Rate Purpose How to Add to Soap; Coffee Grounds: 1 tablespoon per pound of oils, use more or less depending on desired amount of exfoliation: Exfoliation & color : You can toss coffee grounds in lye water to pull out color or simply add to oils before mixing in lye solution. 5. SKU: 358-002 Categories: Lube and Additives, Rearend/Differential. Thanks J Jay Tyrrell, Sep 24, 2012. Add to Wishlist. Use RockSolid Professional Anti-Skid Additive to add texture and create a slip-resistant surface in any of the three interior floor coating systems. 09 Tacoma ... mechanical differential was only used in the 05-08 Tacoma Sport models which does need an additive added when changing the rear differential fluid. Too much limited slip additive is not good either. I have removed about 1 quart of the oil and replaced it with 1 quart of plain oil, the noise did not go away. Regardless of the lube type, always use a GL5 rated lube with the least … I have the "GM" posi additive. This paper adds to previous work in this area and brings to a conclusion the development, design and experimentation associated with this extensive …