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Drivetrain› Differentials and Rear-End Components
Zumbrota Drivetrain
Standard Spider Gear Set for GM 8.6" Open Differential
SKU: ZIKGM8.6-S-30V3
Moderate — 2–4 hours
Overview
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
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Specifications
| Brand | Zumbrota Drivetrain |
| Part Number | ZIKGM8.6-S-30V3 |
| Category | Drivetrain |
Videos
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USA Standard Unboxing - Spider Gear Kit
How-to Install a Spartan Locker in a GM 8.5 10-Bolt (No Gear Reset Needed)
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WE INSTALLED A YUKON POSI & 4.11 GEARS ON MY CHEVY SILVERADO!
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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