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Yukon Gear & Axle (YK GM8.6-B) Master Overhaul Kit for GM 8.6 Differential

  • Based on 1,052 reviews
Condition: New
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Availability: 18 left in stock
Fulfilled by Amazon

Arrives Tuesday, Nov 19
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Style: GM 8.6" '09 & newer


Features

  • Yukon Master Overhaul kits give you all the high quality parts you need to start and finish every differential job
  • Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs
  • This kit uses Timken bearings and races along with high quality seals and small parts
  • Included in this kit are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable)
  • Yukon's Master Overhaul kits are the most comprehensive and complete kits on the market

Manufacturer: ‎Yukon Gear


Brand: ‎Yukon Gear


Item Weight: ‎7.25 pounds


Country of Origin: ‎USA


Item model number: ‎YK GM8.6-B


Manufacturer Part Number: ‎YK GM8.6-B


OEM Part Number: ‎YKGM8.6B


Domestic Shipping: Item can be shipped within U.S.


Date First Available: February 13, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • fits 2000 grand marquis ls with 8.8 --- good product
Style: Ford 8.8" '09 & down
this went alot smoother than i expected in my 2k grand marquis ls with a 8.8 diff. i wish they would label the bearings on the cards just to make it easier when you go to get them so you dont have to triple check yourself to be sure you have the right set. of course that could just be me, i just triple check it so i know i dont have to pull it apart again.... the shim kit was plenty for me, and i dont know if it was dumb luck or excellent oem fitment but i was able to reuse my old shims and my pattern came out perfect first go, i do wish they would offer this kit with the axle bearings and seals along with it so you can just do it all at once with one kit. but this went so much smoother than i expected, i had a bad axle bearing that ate into my axle, that caused a bad carried bearing so i just redid it all in my driveway, car rides smooth again, no noise at all. even after 16 heart attacks i was able to do this slowly and it only took me about 5 hours with hand tools thats even pressing them on with a old bearing and a small sledge. ... show more
Reviewed in the United States 🇺🇸 on July 21, 2022 by playful0

  • A MUST Have for a Regear or Rebuild
Style: Ford 10.5" '07 & down
Yukon has a deserved reputation for quality. I've used these kits for years and always been satisfied. They come with all parts needed for a typical regear or rebuild of a differential. It would be nice if they included the better carrier shims they offer, which don't require you to try and beat a stack of thin shims into the rear when setting carrier bearing preload. The good shims have two thick outer shims that interlock with the thinner shims in between them, and work really well. I always buy them for any rear where the shims are outside the bearing races. A bit more marking compound would also be helpful, especially if you don't have a pinion depth tool and have to run the setup a bunch of times to find proper pinion depth. Finally, a bit better packaging would be nice. The bearings, etc. are almost always loose in the box when I get them because they are too heavy to be held in place by plastic over cardboard alone. Nothing is ever missing or damaged, so its a pretty minor concern, but these small inconveniences and issues are why I rate this at 4 stars instead of 5. Honestly, its better than any other kit like it you're going to buy. I'll add that setup bearings can be very helpful depending on how you are setting up the gears and what tools you have. I just get an extra set of cones and grind the ID out with a carbide cutter until they slip fit. This prevents you from damaging a bearing trying to remove it if the shim under it isn't right, as most pinion bearings are basically blind pressed. If they need to be removed typically I cut off the cage and slot the inner race before splitting it with a cold chisel. Just a couple tips for anyone doing this for the first time. ... show more
Reviewed in the United States 🇺🇸 on March 25, 2021 by Mrs. Krapf

  • What are you waiting for?
Style: GM '88 & older 14T
I used this for a 1 ton 14bolt off of a military vehicle. Everything was packaged perfectly and installation was easy enough if you follow the included instructions. Setting the preload was a bit tricky but here’s a quick tip for the pinion When you use the crush sleeve, invert the pinion on a press so that you press the nose of the pinion gear into the yoke thereby increasing pinion preload. Now don’t just crank on it but add pressure and let off and check the resistance on spinning the yoke. Once you hit your mark you have set preload and torque it down. These gear are rock solid and I had no problem rebuilding my axle with no prior experience YouTube is your friend! ... show more
Reviewed in the United States 🇺🇸 on November 2, 2022 by Big Mike

  • Perfect
Style: Chrysler 9.25" ZF rear '11 & up
Great setup good price extremely happy with this kit will buy again
Reviewed in the United States 🇺🇸 on September 18, 2022 by Amazon Customer

  • Pricing
Style: Ford 10.25"
Good pricing
Reviewed in the United States 🇺🇸 on February 6, 2023 by cindy

  • Doesn’t work for dodge Dana 60’s
Style: Dana 60 & 61 front
Amazon says this works for dodge axles, but it doesn’t. I purchased this for my 1994 dodge ram and the bearings and races work fine, but the inner seals are the wrong diameter for a dodge axle. Other than that, I like Yukon products and this kit is good. Yukon also has a different part # for dodge axles that I didn’t know about until after using this kit. ... show more
Reviewed in the United States 🇺🇸 on April 6, 2023 by Daniel wilson

  • 04 f250 rear end
Style: Ford 10.5" '07 & down
For the 07 and down Ford super duty rear end rebuild kit it will fit any Ford Sterling 10.5 rear end from 99-07. You can tell they it is a 10.5 it it has NO oil fill plug on the diff cover unlike the Dana’s. Anyway this kit is very quality and comes with good timken bearings. front Pinion bearing number:HM89443 Rear pinion bearing: NP504493 Differential bearings(both are the same): 469-N For those wondering the Koyo and timken bearings are the same number. In my rear diff there was koyo bearings when torn apart that appeared to still be in stellar shape so if you are looking at a cheaper kit with koyo bearings don’t shy away from it they also seem to be very good quality. Also this job is very manageable and anyone can do it. ... show more
Reviewed in the United States 🇺🇸 on June 27, 2021 by Cameron

  • Nothing special
Style: Dana 44 standard rotation front w/ 30 sp...
I bought this on sale. Nothing wrong with the product, but nothing there to make it worth twice as much as other brands.
Reviewed in the United States 🇺🇸 on March 5, 2023 by Jesse

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