⚙️ Upgrade your GM 8.6 differential with confidence—master the road, master the kit!
The USA Standard Gear ZK GM8.6-B Master Overhaul Kit is a comprehensive, precision-engineered solution for GM 8.6 differentials. Featuring premium Koyo bearings and races, a full complement of carrier and pinion components, and OEM-exceeding quality control, this Japanese-made kit ensures a reliable, durable rebuild that professionals trust.
| Manufacturer | USA Standard Gear |
| Brand | USA Standard Gear |
| Model | Master Overhaul Kit for GM 8.6 Differential |
| Item Weight | 7.34 pounds |
| Product Dimensions | 12 x 13 x 3 inches |
| Country of Origin | Japan |
| Item model number | ZK GM8.6-B |
| Exterior | Machined |
| Manufacturer Part Number | ZK GM8.6-B |
| OEM Part Number | ZKGM8.6B |
| Special Features | This kit uses Koyo bearings and races, 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), USA Standard Master Overhaul kits let you finish your install with confidence |
K**T
Phenomenal Customer Service - Answered phone call on 2nd ring and I talked to a PERSON!
Short summary: Parts are great and customer service is better - Thank you Troy!!! This is an amazing company. I ordered the kit expecting a baffle and pinion oil slinger to be included. Thinking it was an error (after turning my shop upside down thinking I lost them) I had ordered a replacement. That kit too did not have the pinion baffle or oil slinger. Discouraged, I looked at the packing slip and called the 888 number. Troy picked up on like the 2nd ring and took care of me! After explaining my frustration at the project and very willing to pay Troy is sending them out free of charge 2day delivery.Troy, you are tha man! I sincerely appreciate you and I'm just sad I didn't have the confidence to call sooner.I will be getting all my gearing equipment from Drivetrain America moving forward.
V**C
Good
Good
T**!
Master install kit
This kit was just what I needed to get the differential set up and put together. It came with all the shims, bearings, seal and new nut.
P**S
Worked for my application.
Was as described.
A**L
Good product
Good product, 8 months later open up the case to throw a different rear gear & bearings look in good shape, only thing wrong I received the wrong pinion seal in the kit besides that it was solid
N**N
Everything i needed.
Note this is a small bearing kit
A**R
The parts that I ordered
I received the box this morning with only the rear inspection plate cover gasket inside, no bearings no nothing except a gasket and I really need these brgs bad , the box has - had no tape anywhere it just opened up !! Please send these out ASAP !! Thanks Drewey
V**E
Fits perfectly
Fits like a glove, the bearings were actually stamped made in Japan and everything looks and fits correctly
Trustpilot
1 day ago
2 days ago
