Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.
Hover over the image to zoom in
Share this:

K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.

Part No. 402508 Warranty Details  
$10.99
Quantity  Add to Cart
Designed to quiet chattering differentials and improve gear oil performance. Use with conventional GL-5 or synthetic gear oils.
Back To Top
Concentrated:No
Container Type:Tube
Size:7 oz
Spray:No
Type:Limited Slip

REVIEW SNAPSHOT®

by PowerReviews
K & W ChemicalTrans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.
 
4.5

(based on 25 reviews)

Ratings Distribution

  • 5 Stars

     

    (19)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (3)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

92%

of respondents would recommend this to a friend.

Pros

  • Easy to use (10)
  • Reliable (3)

Cons

No Cons

Best Uses

  • Home garage (8)
  • Automotive repair shop (4)
  • Upkeep (4)
    • Reviewer Profile:
    • Auto enthusiast (6), Casual driver (4), Truck enthusiast (4), Mechanic (3)

Most Liked Positive Review

 

1998 Jeep Wrangler Trac-Lok

My 1998 Jeep Wrangler Sahara 4.0L has a Trac-Lok limited slip rear differential. The service manual requires that 4oz of limited slip lubricant be added to the 75W-90 gear oil. This Trans-X®...Read complete review

My 1998 Jeep Wrangler Sahara 4.0L has a Trac-Lok limited slip rear differential. The service manual requires that 4oz of limited slip lubricant be added to the 75W-90 gear oil. This Trans-X® Posi-Trac® Limited Slip Gear Oil Additive meets the specifications for my Jeep. The pointed cap made it easy to inject into the differential through a 3-foot plastic tube.

VS

Most Liked Negative Review

 

Too soon to tell

First time use. Seems to work. Time will tell.

First time use. Seems to work. Time will tell.

Reviewed by 25 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

I would buy this product again

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

Ordered this part online. I always add a bottle with the 75w-140 differential fluid

 
5.0

xxxx

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

quite rear clutch noise so it must be ok

 
5.0

good stuff

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

always use

 
5.0

Good stuff.

By 

from undisclosed

See all my reviews

Verified Buyer
3 or more reviews submitted

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

Limited slip working correctly now.

 
5.0

I would recommend this!

By 

from undisclosed

See all my reviews

Verified Buyer
3 or more reviews submitted

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

Good Quality and great price!

 
5.0

Sweet deal and low bill.

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

Sweet deal and low bill.

 
5.0

good

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

good

(1 of 1 customers found this review helpful)

 
5.0

just great

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

She said grease may rear lol

(2 of 2 customers found this review helpful)

 
5.0

Would definitely purchase again

By 

from undisclosed

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

Changed the rear differential gear oil in my 2002 Tundra with Limited Slip and immediately began hearing a noise. Added the Trans-X Posi Trac Limited Slip Gear Oil Additive and within just a few miles the noise went away. If you are changing oil in a Limited Slip Differential, go ahead and purchase the additive and save yourself from having to suction out or drain some of the oil to make room for the Trans-X.

 
5.0

Vital Organ

By 

from Perryville, Ar

Verified Buyer

Comments about K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz.:

It is the life of quietness

  • Was this a gift?:
  • No

Displaying reviews 1-10

Back to top

Previous | Next »

Do you have questions about this product?

 

Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

18 Questions | 20 Answers
Displaying questions 1-10Previous | Next »
  • Q:

    do in need this on a 2003 f150 4x4 rear differential
    Asked on 6/8/2017 by mutlynut from undisclosed

    2 answers

    • A:

      If it has a clutch type limited slip yes. If you sure, it's still safe to
      use it. I believe it's just an additive package suspended in gear oil
      anyways. It won't hurt anything.....

      Answered on 6/8/2017 by thekutzners from undisclosed
    • A:

      It is recommended unless you get a grease that already has the additive included. If you get like a synthetic grease or something like that most of them have the limited slip already in them. If you get a standard grease then the additive is needed. Let me know if this helps.
      David.
      Sent from my iPhone

      Answered on 6/8/2017 by dtexeira32 from undisclosed
  • Q:

    Would this additive be recommended for eliminating noise in the front differential of my 2005 Mercedes ML350?
    Asked on 2/2/2017 by JimmyG from Chicago

    1 answer

    • CUSTOMER CARE

      A:

      Hi JimmyG, glad to assist you! This K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz. (Part No. 402508) is used for axles equipped with limited slip, posi-traction, or traction equalizers, for use in all domestic, foreign cars and trucks. It is designed to quiet chattering differentials and improve gear oil performance for use with conventional GL-5 or synthetic gear oils. For more information, please copy and paste this link. URL - http://www.crcindustries.com/auto/services/get-pds/402508

      Answered on 2/3/2017 by Steve from AAP
  • Q:

    Will this meet the dodge stranded for the 4.oz of additive needed in a rear differential on a 2008 ram 1500 4x4? Or do i have to use the dealer ship additive sold just for dodge trucks.
    Asked on 12/27/2016 by vic from Tempe ,AZ

    1 answer

    • CUSTOMER CARE

      A:

      Hi Vic, glad to assist you! This K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz. (Part No. 402508) is used for axles equipped with limited slip, posi-traction, or traction equalizers, for use in all domestic, foreign cars and trucks. It is designed to quiet chattering differentials and improve gear oil performance for use with conventional GL-5 or synthetic gear oils. For more information, please copy and paste this link. URL - http://www.crcindustries.com/auto/services/get-pds/402508

      Answered on 12/28/2016 by Steve from AAP
  • Q:

    Do I need this in addition to the Mobil One 75-140 gear oil?????
    Asked on 5/30/2016 by pete from 6790

    2 answers

    • A:

      yes. recommended in addition to gear oil for limited slip differentials.

      Answered on 6/1/2017 by MG from NY
    • CUSTOMER CARE

      A:

      Hi Pete, glad to assist you! TRANS-X POSI-TRAC Limited Slip Gear Oil Additive is designed to quiet chattering differentials and improve gear oil performance. Use with conventional GL-5 or synthetic gear oils. For more information, please copy and paste this link. URL - http://www.crcindustries.com/auto/services/get-pds/402508

      Answered on 5/31/2016 by Steve from AAP
  • Q:

    Is Trans-X Posi Trac additive spec equivalent to the Ford Friction Modifier XL-3 Ford specification EST-M2C118–A? Replacing my differential fluid with 75W140 on a 2003 Ford F150 and wondering if I can substitute this for the XL-3.
    Asked on 5/17/2016 by Shadetree Knucklebuster from Cumming, GA

    1 answer

    • CUSTOMER CARE

      A:

      Hi Shadetree, I'm glad to assist you. This K&W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz. (Part No. 402508) can be used in axles equipped with limited slip, posi-traction, or traction equalizers, for use in all domestic&foreign cars&trucks. Use with conventional GL-5 or synthetic gear oils. For more information, please copy and paste this product data sheet link. URL - http://www.crcindustries.com/auto/services/get-pds/402508

      Answered on 5/24/2016 by Steve from AAP
  • Q:

    I have a 04 Dodge Neon SRT-4 and see it calls for their Mopar friction modifier when changing the transaxle fluid....can I use this product as an equivalent or would you not recommend it?
    Asked on 12/29/2015 by JustNbeatS from Panama City, Florida

    1 answer

    • CUSTOMER CARE

      A:

      Hi JustNbeatS, I'm glad to assist you. This K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz. (Part No. 402508) can be used in axles equipped with limited slip, posi-traction, or traction equalizers, for use in all domestic & foreign cars & trucks. It is not an equivalent for Mopar friction modifier. It is always recommended to follow your vehicle owner's manual.

      Answered on 12/30/2015 by Solomon from AAP
  • Q:

    can i add this to Royal Purple gear oil?
    Asked on 8/3/2015 by marc from United States

    1 answer

    • CUSTOMER CARE

      A:

      Hi Marc, I'm glad to assist you! This K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz. (Part No. 402508) can be used with conventional GL-5 or synthetic gear oils.

      Answered on 8/3/2015 by Steve from AAP
  • Q:

    CAN I USE FOR MY 97 GRAND CHEROKEE LAREDO JEEP
    Asked on 7/28/2015 by KILEY

    1 answer

    • CUSTOMER CARE

      A:

      Yes, Kiley, you can use this K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive, 7 oz. (Part No. 402508) in your 1997 Jeep Grand Cherokee Laredo. Note: Not for use in Jeeps with QUDRA-TRAC OR QUADRA-DRIVE.

      Answered on 7/28/2015 by Steve from AAP
  • Q:

    CAN I USE THIS ON MY 2005 SIERRA DENALI >? FRONT DIFF? TRANSVERES CASE>? AND TRANSMISIION>? ALL THREE CAN I ADD RHIS TOO>? HELLO? THANKS BIGDADDYCAINE44!!!$$$
    Asked on 4/8/2015 by BIGPAAPAPUMP!! from TRUMBULL CONN

    1 answer

    • CUSTOMER CARE

      A:

      I'm happy to help, BIGPAAPAPUMP!! K & W Chemical Trans-X® Posi Trac® Limited Slip Gear Oil Additive (Part No. 402508) is engineered for use in limited slip differentials and is an equivalent to GM Part No. 1052358. This product is not intended for use in your transfer case or transmission. It is to be mixed with 75W-90 synthetic axle lubricant.

      The transmission in your 2005 GMC Sierra Denali 6.0L V8 utilizes Dexron VI, such as CARQUEST Oil & Fluids Dexron VI (ATF) Automatic Transmission Fluid (Part No. CQ426).

      The manual transfer case uses GM Part No. 88861800 or equivalent, such as a Dexron III automatic transmission fluid (CARQUEST Oil & Fluids Part No. CQ420 [1 qt] or Part No. CQ420-1G [1 gal]). The automatic transfer case utilizes Auto-Trak II GM Part No. 12378508 or equivalent.

      Answered on 4/8/2015 by Heath, ASE Parts Specialist from AAP
  • Q:

    CAN YOU USE THISA IN THE TRANSEVERE CASE ON A 2005 SIERRA DENALI?? AND THE FRONT DIFF? AND THE TRANNY??? THANKS !!!
    Asked on 4/8/2015 by BIGDADDYCAINE44 from BRIFDGEPORT CONN

    1 answer

    • CUSTOMER CARE

      A:

      Happy to help you with your question! This additive is compatible with your vehicle and is comparable to the GM Friction Modifier. On the front of the label it references that it is comparable as well and is usable in the front, rear, and transfer case.

      Answered on 4/8/2015 by Panda from AAP
Displaying questions 1-10Previous | Next »

Do you have a question about this product? 

Check out the specials in our monthly flyer.
 
 
Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.