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1991 Ford F-150

1991 Ford F-150 Differential Lockers

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Yukon Trac Loc positraction, Ford 8.8", 31 spline, with Carbon Fiber clutches.
Part Number: YUKYCF318C
Guaranteed to Fit
$749.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD, Ford 8.8 in.
  • 1991 Ford F-150 XL All Engines RWD, Ford 8.8 in.
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Ford 8.8 in.
Product Details
Location : RearNotes : Fits Ford 8.8 in. with 31 Spline Axles; Includes Spider GearsProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Spartan Locker For Dana 44, (Not D44-Hd) 30 Spline Axles, With Cross Pin Shaft
Part Number: YSTSLD4430
Guaranteed to Fit
$537.49
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD, Dana 44
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Dana 44
  • 1991 Ford F-150 XL All Engines 4WD, Dana 44
Product Details
Location : FrontAxle Type : Dana Spicer 44Spline Count : 30Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year USA Standard Gear limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Spartan Locker For Ford 8.8", 31 Spline, Includes 7/8" Cross Pin Shaft
Part Number: YSTSLF8831
Guaranteed to Fit
$549.99
Vehicle Fitment
  • 1991 Ford F-150 All Submodels All Engines Ford 8.8 in.
Product Details
Location : RearNotes : 7/8 in. Cross Pin ShaftAxle Type : Ford 8.8 in.Spline Count : 31Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year USA Standard Gear limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Dana 44 3.92 & Up Dura Grip Limited Slip, 30spl, IFS w/ YSPSPR-001 Spring Kit
Part Number: YUKYDGD444301
Guaranteed to Fit
$792.89
Vehicle Fitment
  • 1991 Ford F-150 All Submodels All Engines
Product Details
Location : Front or RearNotes : Doubled Drilled for 7/16 in. and 1/2 in. Ring Gear Bolts; Must use YSPBLT-027 to Work with 3/8 in. Ring Gear Bolts; Recommend High Grade GL-5 Gear Oil and Yukon LSD AdditiveAxle Type : Dana Spicer 44Spline Count : 30Gear Ratio : 3.92 and upSeries : Yukon Gear Dura Grip Limited Slip SeriesProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Promotions : Yukon Ultimate Summer Rebate
Yukon Dura Grip Limited Slip for Ford 8.8” Differential, 31 Spline
Part Number: YUKYDGF88311
Guaranteed to Fit
$799.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines RWD
  • 1991 Ford F-150 XL All Engines RWD
  • 1991 Ford F-150 XLT Lariat All Engines RWD
Product Details
Location : RearNotes : Unit will Not Fit Differentials with Independent Front or Rear Suspension; Yukon Recommends the use of High Grade GL-5 Gear Oil and Yukon LSD AdditiveAxle Type : Ford 8.8 in.Spline Count : 31Series : Yukon Gear Dura Grip Limited Slip SeriesProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Promotions : Yukon Ultimate Summer Rebate
Dana 44 3.73 & Down Dura Grip Limited, Slip 30spl, IFS w/ YSPSPR-001 Spring Kit
Part Number: YUKYDGD443301
Guaranteed to Fit
$799.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD
  • 1991 Ford F-150 XL All Engines 4WD
  • 1991 Ford F-150 XLT Lariat All Engines 4WD
Product Details
Location : FrontNotes : Doubled Drilled for 7/16 in. and 1/2 in. Ring Gear Bolts; Must use YSPBLT-027 to Work with 3/8 in. Ring Gear Bolts; Recommend High Grade GL-5 Gear Oil and Yukon LSD AdditiveAxle Type : Dana Spicer 44Spline Count : 30Gear Ratio : 3.73 and downSeries : Yukon Gear Dura Grip Limited Slip SeriesProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Promotions : Yukon Ultimate Summer Rebate
Dana 44 Grizzly Locker replacement
Part Number: YUKYGLD44430
Guaranteed to Fit
$966.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD, Dana 44 IFS
  • 1991 Ford F-150 XL All Engines 4WD, Dana 44 IFS
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Dana 44 IFS
Product Details
Location : FrontNotes : Will Not Work with Early Tapered Axle Designs that use Axle Spacer Button; Unit is Drilled for 7/16 in. Ring Gear Bolts; If using 3/8 in. Bolts, Purchase QTY 10 YSPBLT-027 SpacersSpline Count : 30Gear Ratio : 3.92 and upProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Promotions : Yukon Ultimate Summer Rebate
Yukon Grizzly locker, fits Dana 44, 30 spline, 3.73 & down.
Part Number: YUKYGLD44330
Guaranteed to Fit
$999.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD, Dana 44 IFS
  • 1991 Ford F-150 XL All Engines 4WD, Dana 44 IFS
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Dana 44 IFS
Product Details
Location : FrontNotes : Unit is Drilled for 7/16 in. Ring Gear Bolts; If using an Application which Has 3/8 in. Ring Gear Bolts, Purchase Qty 10 of Part # YSPBLT-027 to Sleeve the Ring Gear BoltsSpline Count : 30Gear Ratio : 3.73 and downProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Promotions : Yukon Ultimate Summer Rebate
Yukon Grizzly locker, Ford 8.8" with 31 splines.
Part Number: YUKYGLF8831
Guaranteed to Fit
$1,076.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines RWD, Ford 8.8 in. Rear
  • 1991 Ford F-150 XL All Engines 4WD, Ford 8.8 in. Rear
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Ford 8.8 in. Rear
Product Details
Location : RearNotes : Ford 8.8" with 31 splines.Axle Type : Ford 8.8 in.Spline Count : 31Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Promotions : Yukon Ultimate Summer Rebate
Yukon Zip Locker for Dana 44 with 30 spline axles, 3.92 & up
Part Number: YUKYZLD44430
Guaranteed to Fit
$1,245.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD, Dana 44
  • 1991 Ford F-150 XL All Engines 4WD, Dana 44
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Dana 44
Product Details
Location : FrontNotes : Drilled for 7/16 in. Ring Gear Bolts; If using 3/8 in. Ring Gear Bolts, Purchase Qty 10 of Part Number YSPBLT-027 to Sleeve the Ring Gear BoltsAxle Type : Dana Spicer 44Spline Count : 30Gear Ratio : 3.92 and upProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 6-year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Yukon Zip Locker for Dana 44 with 30 spline axles, 3.73 & down
Part Number: YUKYZLD44330
Guaranteed to Fit
$1,245.89
Vehicle Fitment
  • 1991 Ford F-150 Custom All Engines 4WD, Dana 44
  • 1991 Ford F-150 XL All Engines 4WD, Dana 44
  • 1991 Ford F-150 XLT Lariat All Engines 4WD, Dana 44
Product Details
Location : FrontNotes : Drilled for 7/16 in. Ring Gear Bolts; If using 3/8 in. Ring Gear Bolts, Purchase Qty 10 of Part Number YSPBLT-027 to Sleeve the Ring Gear BoltsAxle Type : Dana Spicer 44Spline Count : 30Gear Ratio : 3.73 and downProduct Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 6-year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Grizzly Locker for 2.5 ton Rockwell with 16 spline axles
Part Number: YUKYGLR2516
Universal Fit
$768.89
Product Details
Quantity Sold : Sold individuallyWarranty : 1 year Yukon Gear & Axle limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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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