Revolution Gear & Axle GM 10-Bolt 8.5 in./8.6 in. 5.13 Ratio Ring & Pinion Set
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Warranty Information
Vendor warranty summary
Revolution Gear & Axle Warranty
At a glance: Limited warranty for the original retail buyer: 2 years on ring and pinions, 10 years on Discovery Series and replacement axles, lifetime on driveshafts, 1 year on most other parts.
This is Revolution Gear & Axle's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: November 4, 2026.
Coverage by product line
| Revolution Gear & Axle product | Coverage |
|---|---|
| Ring and pinion sets (excluding 9310 Pro Gears) | Limited 2 years |
| 9310 Pro Gears | Separate product warranty |
| Discovery Series front and rear axles | Limited 10 years, including breakage, bent axles and twisted splines |
| U-joints on Discovery Series axles (except Revolution HD Chromoly U-joints) | 1 year |
| Replacement rear axles (single) | Limited 10 years, manufacturing defects |
| Driveshafts | Limited lifetime, twisted tubing and broken welds |
| Bearing installation kits | 1 year |
| Differential covers | 1 year |
| Eaton differentials and traction | 1 year |
| ARB differentials and traction | 5 years |
| OX Offroad differentials and traction | 1 year |
| Dana Spicer crate axles | 1 year |
| All other unlisted parts | 1 year |
What's covered
- Defects in materials and workmanship for the periods listed by product line
- Breakage, bent shafts and twisted splines on Discovery Series axles
- Twisted tubing and broken welds on driveshafts
- Refund or replacement once an approved RMA claim is processed
What's not covered
- Anyone other than the original retail purchaser
- Incorrect installation or maintenance
- Modified parts, accident damage and competition use
- Normal wear items such as bearings and seals
- Labor, road service, shipping, lost vehicle use and lost revenue
- Damage to other vehicle parts caused by a failed Revolution part
- Promises made by dealers or other third parties
- Implied warranties of merchantability and fitness for a particular purpose
How to make a Revolution Gear & Axle warranty claim
- Request an RMA number from Revolution and describe the problem in detail; warranty returns must be pre-approved.
- Wait for the approved RMA number before shipping anything.
- Ship the part in its original packaging with the RMA number on the outside of the box; returns arriving more than 60 days after the RMA is issued are refused.
- Revolution processes the refund or replacement once the return is received and approved.
Revolution Gear & Axle contact: Revolution Gear & Axle: 1-844-213-4327; contactus@revolutiongear.com; 403 Joseph Dr., South Elgin, IL 60177; 9915 Pioneer Blvd., Santa Fe Springs, CA 90670 · Warranty page
Bought it from NVMOS? Start with us.
Revolution will not accept anything without a pre-approved RMA and a detailed write-up of the failure, and it sends B2B buyers like NVMOS through their sales rep. Contact us first with photos and your install details, and we will open the RMA, make the case to Revolution and keep you posted. Have your order number and a few photos of the issue ready, then call or text us at (920) 249-7744 or send us a message.
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See all Revolution Gear & Axle products, lead times and FAQs →
Disclaimer: The information on this page describes Revolution Gear & Axle's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Sources: Revolution Gear & Axle warranty (official) and Revolution Gear & Axle returns and RMA (official) and Revolution Gear & Axle about us (official) and Revolution Gear & Axle home page (official). Last updated on nvmos.com: November 4, 2026. See our return policy for NVMOS's own terms.
About the brand
Revolution Gear & Axle is a veteran-owned, second-generation family driveline company that ships from warehouses in South Elgin, Illinois and Santa Fe Springs, California. At NVMOS we carry its ring and pinion sets, gear packages, Discovery Series chromoly axles, driveshafts, install kits and lockers for the Jeeps, Toyotas and pickups we support.
Based in: South Elgin, Illinois and Santa Fe Springs, California · Lead time: In-stock parts ship in 1-3 business days; parts stocked at the manufacturer take about 1-2 weeks.
Shop all 206 Revolution Gear & AxleWarrantyAll brands
Warranty terms are set by Revolution Gear & Axle, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Revolution Gear & Axle GM 10-Bolt 8.5 in./8.6 in. 5.13 Ratio Ring & Pinion Set
This Revolution Gear & Axle ring and pinion set puts 5.13 gearing in the GM 10-Bolt 8.5 in./8.6 in. axle. Good for a regear where the ratio is already decided.
| Spec | Detail |
|---|---|
| Fitment | GM 10-Bolt 8.5 in./8.6 in. axle |
| Ratio | 5.13 |
| Axle | GM 10-Bolt 8.5 in./8.6 in. |
| Part number | GM10-513 |
| Weight | 21 lb |
Made for the GM 10-Bolt 8.5 in./8.6 in. axle. Gear sets are specific to axle model, so confirm yours before ordering. Not sure it fits your build? Call or text us at (920) 249-7744 with your year, trim and setup and we will confirm it.
What axle does this fit?
It fits the GM 10-Bolt 8.5 in./8.6 in. axle. Call or text us at (920) 249-7744 with your year, trim and setup and we'll confirm.
What ratio is it?
It is a 5.13:1 ratio.
Does it include install parts?
No, this is the ring and pinion set. Call or text us at (920) 249-7744 and we'll match the right install kit to it.
What is the warranty?
See our Revolution Gear & Axle warranty page for the current terms.
Specifications
Revolution Gear & Axle GM 10-Bolt 8.5 in./8.6 in. 5.13 Ratio Ring & Pinion Set FAQs
What axle does this fit?
It fits the GM 10-Bolt 8.5 in./8.6 in. axle. Call or text us at (920) 249-7744 with your year, trim and setup and we'll confirm.
What ratio is it?
It is a 5.13:1 ratio.
Does it include install parts?
No, this is the ring and pinion set. Call or text us at (920) 249-7744 and we'll match the right install kit to it.
What is the warranty?
See our Revolution Gear & Axle warranty page for the current terms.
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