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Mercury Grand Marquis Differential Lockers

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YC F318-C Yukon Trac Loc positraction, Ford 8.8", 31 spline, with Carbon Fiber clutches.
Part Number: YUKYCF318C
Vehicle Info Required to Guarantee Fit
$749.89
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.

SL F9-28-31 Differential Locker - Direct Fit, Sold individually
Part Number: YSTSLF92831
Vehicle Info Required to Guarantee Fit
$482.49
Product Details
Location : RearNotes : This Unit uses the Factory Side Gears and is Compatible with 2 and 4 Pinion CarriersAxle Type : Ford 8 in., 9 in.Spline Count : 28Product 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.

SL F8.8-31 Differential Locker - Direct Fit, Sold individually
Part Number: YSTSLF8831
Vehicle Info Required to Guarantee Fit
$549.49
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.

YDGF7.5-28 7.5" Ford Yukon Dura Grip Limited Slip; Composite Clutches
Part Number: YUKYDGF7528
Vehicle Info Required to Guarantee Fit
$761.89
Product Details
Location : RearNotes : Yukon Recommends the use of High Grade GL-5 Gear Oil and Yukon LSD (Limited Slip Differential) Additive for Long Life and Smooth OperationSpline Count : 28Series : 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
YDGF9-31-AG 9" Ford Trac-Loc with 31 Spline; Limited Slip; Aggressive - 4 Preload Springs
Part Number: YUKYDGF931AG
Vehicle Info Required to Guarantee Fit
$795.89
Product Details
Location : RearNotes : Has 1.783 in. Bearing Journals; Will Not Fit Strange Engineering Alum Dropouts; Recommend High Grade GL-5 Gear Oil and Yukon LSD Additive; Require Ring Gear Bolt Part #YSPBLT-014Axle Type : Ford 9 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
YDGF9-31-SM 9" Ford Trac-Loc with 31 Spline; Limited Slip; Smooth - 2 Preload Springs
Part Number: YUKYDGF931SM
Vehicle Info Required to Guarantee Fit
$799.89
Product Details
Location : RearNotes : Has 1.783 in. Bearing Journals; Will Not Fit Strange Engineering Alum Dropouts; Recommend High Grade GL-5 Gear Oil and Yukon LSD Additive; Require Ring Gear Bolt Part #YSPBLT-014Axle Type : Ford 9 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
YDGF9-28-SM 9" Ford Trac-Loc with 28 Spline; Limited Slip; Smooth - 2 Preload Springs
Part Number: YUKYDGF928SM
Vehicle Info Required to Guarantee Fit
$799.89
Product Details
Location : RearNotes : Has 1.783 in. Bearing Journals; Will Not Fit Strange Engineering Alum Dropouts; Recommend High Grade GL-5 Gear Oil and Yukon LSD Additive; Require Ring Gear Bolt Part #YSPBLT-014Axle Type : Ford 9 in.Spline Count : 28Series : 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
YDGF9-28-AG 9" Ford Trac-Loc with 28 Spline; Limited Slip; Aggressive - 4 Preload Springs
Part Number: YUKYDGF928AG
Vehicle Info Required to Guarantee Fit
$799.89
Product Details
Location : RearNotes : Has 1.783 in. Bearing Journals; Will Not Fit Strange Engineering Alum Dropouts; Recommend High Grade GL-5 Gear Oil and Yukon LSD Additive; Require Ring Gear Bolt Part #YSPBLT-014Axle Type : Ford 9 in.Spline Count : 28Series : 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
YDGF8.8-31-1 Yukon Dura Grip Limited Slip for Ford 8.8” Differential, 31 Spline
Part Number: YUKYDGF88311
Vehicle Info Required to Guarantee Fit
$799.89
Product Details
Location : Rear, Front Or Rear, FrontNotes : 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
YDGF8.8-28-1 8.8" Ford Yukon Dura Grip Limited Slip, 28 Spline, Composite Clutches
Part Number: YUKYDGF88281
Vehicle Info Required to Guarantee Fit
$799.89
Product Details
Location : Rear, FrontNotes : This Unit will Not Work in Vehicles with Independent Rear Suspensions; Yukon Recommends the use of High Grade GL-5 Gear Oil and Yukon LSD AdditiveAxle Type : Ford 8.8 in.Spline Count : 28Series : 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
YGLF9-35 Yukon Grizzly Locker for Ford 9" with 35 Spline Axles
Part Number: YUKYGLF935
Vehicle Info Required to Guarantee Fit
$899.89
Product Details
Location : RearNotes : This Unit Requires a 3.250 in. Dropout for InstallationAxle Type : Ford 9 in.Spline Count : 35Product 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
YGLF9-31 Yukon Grizzly Locker for Ford 9" with 31 spline axles
Part Number: YUKYGLF931
Vehicle Info Required to Guarantee Fit
$899.89
Product Details
Location : RearNotes : Ford 9" with 31 spline axlesAxle Type : Ford 9 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
YGLF9-28 Yukon Grizzly Locker for Ford 9" with 28 spline axles
Part Number: YUKYGLF928
Vehicle Info Required to Guarantee Fit
$921.89
Product Details
Location : RearNotes : Ford 9" with 28 spline axlesAxle Type : Ford 9 in.Spline Count : 28Product 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
YGLF9-31-LB Yukon Grizzly Locker for Ford 9" with 31 spline axles, fits load bolt housing.
Part Number: YUKYGLF931LB
Vehicle Info Required to Guarantee Fit
$964.89
Product Details
Location : RearNotes : Ford 9" with 31 spline axles, fits load bolt housing.Axle Type : Ford 9 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
YGLF9-35-LB Yukon Grizzly locker, Ford 9" with 35 splines, for use with load bolt dropout
Part Number: YUKYGLF935LB
Vehicle Info Required to Guarantee Fit
$969.89
Product Details
Location : RearNotes : The Deck on this Carrier is Machined to be Compatible with a Load-Bolt HousingAxle Type : Ford 9 in.Spline Count : 35Product 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
Page 1 of 2 | Showing 1 - 15 of 20 results

Product Questions & Answers

Q:What else is needed other than this YGLF9-28 to complete the conversion of my 66 Fairlane GTA open 9" rearend? Show Less
Tim
A:BEST ANSWERHello! Other than the differential cover and fluid, it depends on the condition of the rest of your bearings and seals. It is generally a better idea to replace the seals and bearings "while you're in there", but if everything is in particularly great shape, you can reuse them. Show less
Mitchell D.
 
1 Question, 1 AnswerView all Q&As >