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USA Standard Gear

(ZK GM8.5) Master Overhaul Kit for GM 8.5" Differential

  • Based on 200 reviews
Condition: New
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$95.00 Why this price?
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Availability: Only 4 left in stock, order soon!
Fulfilled by Quick Performance Racing
Arrives Wednesday, Oct 21
Order within 8 hours and 53 minutes
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Style: GM 8.5


Features

  • Fit type: Vehicle Specific
  • This kit uses Koyo bearings and races
  • USA Standard Master Overhaul kits let you finish your install with confidence
  • Included 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)

Description

USA Standard Master Overhaul kits give you all the high quality parts you need to start & 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), thread locking compound, marking compound with brush, and gasket. Yukon Master Overhaul kits are the most comprehensive and complete kits on the market. Yukon does extensive research to ensure that every kit is specially tailored to your application.

Manufacturer: ‎USA Standard Gear


Brand: ‎USA Standard Gear


Model: ‎ZKGM8.5 Rear Master Overhaul Kit for GM 8.5" Differential


Item Weight: ‎6 pounds


Item model number: ‎ZK GM8.5


Exterior: ‎Machined


Manufacturer Part Number: ‎ZK GM8.5


OEM Part Number: ‎ZKGM8.5


Date First Available: February 13, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 21

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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Similar Products

Top Amazon Reviews

    • Great value on quality parts
Style: GM 8.5
Review Image by MikeB
Not sure why this kit is so inexpensive. It uses quality Koyo bearings made in Japan and the US. The only reason I can see for its low price is the kit was not packed in its original box. However, the seller included the original box end flap showing the USA Standard Gear P/N and description. Score! Just noticed the "YK" kit costs nearly 4 times as much as this "ZK" kit, probably because it uses Timken bearings. Makes no sense to me because Timkens can be made outside of the US, and I don't see how they can be significantly better than a US- or Japanese-made KOYO. And I've read where KOYOs are used in all kinds of Japanese car and truck applications. Maybe someone can enlighten me. ... show more
Reviewed in the United States on September 6, 2018 by MikeB
    • Works great!
Style: GM 8.5
These guys are great, superior customer service and quality parts. Thanks so much. This kit works great in a factory GM 8.5" rear for 1998 Tahoe with the GU6/G80 carrier. I had to make some changes and the seller accommodated my needs and helped me out with everything else. Thanks Brydon!
Reviewed in the United States on April 24, 2018 by Ricky
    • fits perfect
Style: GM 8.5
Wonderful and worked great on my Tahoe rebuild
Reviewed in the United States on March 14, 2025 by Junctionflyer
    • Great Product!
Style: GM 8.5
Bought one from Napa and took ir back. This one was half the price and it came with an instruction guide with all the spec's!!
Reviewed in the United States on April 10, 2019 by Scott
    • good kit. koyo bearings.
Style: GM 8.5
Great and complete kit. However, bearings did not fit my trutrac diff. ordered the correct bearings and all good to go.
Reviewed in the United States on September 17, 2019 by Priscilla Moynier
    • exactly as advertised!!!
Style: GM 8.5
Great value! got here early!!
Reviewed in the United States on April 21, 2021 by Lew Mathews
    • Makes the job easy!!
Style: GM 8.5
Review Image by Amazon Customer
Excellent kit that had everything you need to install your differential ring and pinion set.
Reviewed in the United States on April 26, 2021 by Amazon Customer
    • Overhaul kit
Style: GM 8.5
Review Image by robert
Everything came in the box..very pleased with the product
Reviewed in the United States on March 9, 2023 by robert

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