Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle
Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle
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Yukon Gear & Axle

Yukon Friction Modifier Additive for Limited Slip/Posi - 4 Ounce Bottle

Key item features

  • Positraction additive
  • For use in any clutch-style limited slip
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4.8 out of 5 stars
stars32 ratings19 reviews
How item rating is calculated
  1. 5 stars94% (30)
  2. 4 stars0% (0)
  3. 3 stars3% (1)
  4. 2 stars0% (0)
  5. 1 star3% (1)
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Showing 1-3 of 19 reviews

Dec 10, 2025
Joseph
Sold and shipped byRANDYS Worldwide
5 out of 5 stars review

Verified Purchase

GMC Yukon Rear Diff Noise gone

Changed the rear differential fluid on my ‘21 Yukon with Valvoline gear oil. It said limited slip friction modifier included so I figured I was good. Nope. Rear differential started making groaning noises on sharp turns. Little did I know I needed to add this Friction modifier. I drain some fluid from the diff, added this 4 oz bottle using a syringe, then topped it off with more gear oil. Did figure 8's in the parking lot. No more noise. Thank god.

Helpful?3TY8IN8IIWAW36332927
Aug 11, 2025
Eric
Sold and shipped byRANDYS Worldwide
5 out of 5 stars review

Verified Purchase

The previous owner of my 2005 Toyota tundra SR5 used mobile one synthetic lubrication. My truck had a shutter in the posi-trac rear end. I added a bottle of this and it cleared it right up. I would recommend this product if you're experiencing a similar condition.

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May 18, 2025
Mahmoud
Sold and shipped byRANDYS Worldwide
5 out of 5 stars review

Verified Purchase

Good product with Expedite shipping

The seller was very professional and courteous . The product was shipped right away and arrived earlier than scheduled. This product has a strong smell but the seller sealed it tight so the smell wasn't lingering. Very good from the seller.

Incentivized Review
Helpful?3TY8IN8IIWAW36332927