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Yukon Gear Lightweight Steel Spool For Ford 9in w/ 31 Spline Axles
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Yukon Gear Lightweight Steel Spool For Ford 9in w/ 31 Spline Axles

$358.13
Part no. YP FSF9-31-LW
Special order Not in stock at our distributor. Lead times vary and can run several weeks. Contact us for an ETA before ordering.

Your vehicle

Year, make and model. Our techs check fitment against it before the order ships.

Yukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat...

Full details and fitment

The details

About this part

Yukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.

Installation Instructions
Installation Instructions
  • Provides 100 Percent Traction To Both Wheels At All Times
  • Provides 100% traction to both wheels at all times
  • Not recommended for street driven vehicles
  • Fits Ford 9 in. w/31 Spline Axles
  • Fits Ford 9" with 31 spline axles
  • Lightweight design