Yukon Gear & Axle
Yukon Gear & Axle YC F8.8-4-34T/L Trac Loc Positraction for / Ford Super 8.8in / 34 Spline / 15-20 F-150
Yukon Gear & Axle YC F8.8-4-34T/L Trac Loc Positraction for / Ford Super 8.8in / 34 Spline / 15-20 F-150
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Overview
Genuine Yukon Gear & Axle part.
The Trac Loc is a less aggressive, street-friendly clutch-type limited slip unit that is suitable for daily driven vehicles and mild off-road use. The clutches work to maintain synchronization between the tires, transferring more torque to the tire that has the best grip while reducing torque transfer to the tire that has less grip. Yukon offers replacement units and rebuild kits for select Trac Loc applications that re-claim the unit’s original performance.
Key Features
- Yukon products are built to withstand the harshest conditions
- The Trac Loc is a less aggressive, street-friendly clutch-type limited slip unit that is suitable for daily driven vehicles and mild off-road use
Fitment
- Fits 2015-2026 Ford F-150
Product Details
| Brand | Yukon Gear & Axle |
| Manufacturer Part Number | YC F8.8-4-34T/L |
| Type | Differential Carrier Case |
| Pinion Spline Count | 34 |
| Carrier Type | Positraction |
| Application | Sold by axle specification — match the axle model, gear ratio, spline count and dimensions to your own axle before ordering |
Product image is for reference only; actual item may differ.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — Yukon Gear & Axle
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Manufacturer's Warranty — Yukon Gear & Axle
Yukon Gear & Axle warrants to the original retail purchaser that its products are free from defects in materials and workmanship, and the term is set by product line rather than by one figure for the whole catalogue. Ring & pinion gear sets, carriers, yokes, install kits (BK, MK, PK, YK), spider gear kits, tools and YP-series parts carry one (1) year; Positraction differentials carry one year and exclude premature clutch wear and abuse. Zip Lockers carry six (6) years and Grizzly Lockers one year, each with collateral parts and labor coverage up to $2,000 on the terms Yukon publishes. 1541H front and rear axles carry ten (10) years, while 4340 chromoly axles (YA W series), spools, Super Joints, YHC drive flanges, Hardcore locking hubs and Hardcore diff covers carry a Limited Lifetime warranty for as long as the original purchaser owns the vehicle the part was first installed in (not transferable). Coverage assumes the product was installed and maintained per Yukon instructions and not modified, abused or damaged in an accident, and Yukon may void the warranty on vehicles running tires larger than its Maximum Recommended Tire Size for that axle. On a verified defect Yukon will repair or replace the product at its choice. Labor, road service, loss of vehicle use and other incidental or consequential damages are excluded, as is axle damage caused by the failure of a non-Yukon component. Yukon also sells an optional Yukon Extended Service (Y.E.S.) plan that upgrades select products to lifetime coverage; it must be purchased within 30 days of ordering the Yukon product. This warranty gives you specific legal rights, and you may have other rights that vary from state to state.
Warranty terms are set by the manufacturer and may change. Full details and claims are handled directly by Yukon Gear & Axle. Contact us if you need help with a warranty claim.

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