Aluminum Center Sections

ApplicationFor Lightweight VehiclesWhen maximum weight reduction is critical NoteFor Heavy, High horsepower, or Street & Strip vehiclesSee HD Pro Aluminum case kits listed below DescriptionLightweight Aluminum 3.062″ Bore Case...

ApplicationFor Lightweight VehiclesWhen maximum weight reduction is critical NoteFor Heavy, High horsepower, or Street & Strip vehiclesSee HD Pro Aluminum case kits listed below DescriptionLightweight Aluminum 3.250″ Bore Case...

3.812″ Ultra Case assembly / HD 40 spline spool / 28 spline Pro gear / yoke Includes:N1912Strange 3.812″ Bore Ultra Case206-T4 Heat Treated Aluminum CaseBillet Aluminum Main CapsSolid Steel Adjuster Nuts N1950ABillet Aluminum Tapered Bearing...

3.812″ Ultra Case assembly / HD 40 spline spool / 28 spline Pro gear / female coupler Includes:N1912Strange 3.812″ Bore Ultra Case206-T4 heat treated aluminum caseBillet aluminum main capsSolid steel adjuster nuts N1950ABillet Aluminum...

3.812″ Ultra Case assembly / HD 40 spline spool / 35 spline Pro gear / yoke Includes:N1912Strange 3.812″ Bore Ultra Case206-T4 heat treated aluminum caseBillet aluminum main capsSolid steel adjuster nuts N1950ABillet Aluminum Tapered Bearing...

3.812″ Ultra Case assembly / HD 40 spline spool / 35 spline Pro gear / female coupler Includes:N1912Strange 3.812″ Bore Ultra Case206-T4 heat treated aluminum caseBillet aluminum main capsSolid steel adjuster nuts N1950ABillet Aluminum...

3.250″ Ultra Case assembly / 35 spline spool / 28 spline Pro gear / yoke Includes:N1902Strange 3.250″ Bore Ultra Case206-T4 Heat Treated Aluminum CaseBillet Aluminum Main CapsSolid Steel Adjuster Nuts N1950ABillet Aluminum Tapered Bearing...

3.250″ Ultra Case assembly / 35 spline spool / 28 spline Pro gear / female coupler Includes:N1902Strange 3.250″ Bore Ultra Case206-T4 heat treated aluminum caseBillet aluminum main capsSolid steel adjuster nuts N1950ABillet Aluminum Tapered...

Strange Ball Bearing Pinion Support, Includes Bearings & Seal For 35 Spline Pinion, Fits 9″ Ford Center Sections Used For Drag Racing ApplicationDrag Race Use Only FeaturesForged 2024-T351 aluminum bodyClear anodized finishMachined for front...

Nitro Gear and Axle strives to provide the highest quality differential components available. They take the steps necessary to ensure their parts are dependable. Their product range is continually growing to meet the needs of consumers for new ratios and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Manufactured right here in the U.S.A., these billet aluminum beauties are CNC machined from aircraft quality 6061-T6 solid billet aluminum. The bearing main caps are then CNC machined from 7075 T6 solid billet aluminum and matched to the housings. Not...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Manufactured right here in the USA, these billet aluminum beauties are CNC machined from aircraft quality 6061-T6 solid billet aluminum. The bearing main caps are then CNC machined from 6061-T6 solid billet aluminum and matched to the housings. Not only...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Nitro Gear and Axle Spools and Mini Spools are the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100 percent traction to both tires at all times. When traction and...

Lightweight Aluminum case assembly / aluminum support / Spool / 28 spline pro gear & yoke Complete Center Section Includes:N1901 / N19043.062″ Bore Lightweight Aluminum Case for 31 or 33 spline3.250″ Bore Lightweight Aluminum Case for 35...

L/W Aluminum case assembly / aluminum support / Pro spool / Standard Gear with yoke Complete Center Section Includes:N1901 / N19043.062″ Bore Lightweight Aluminum Case for 31 or 33 spline3.250″ Bore Lightweight Aluminum Case for 35 or 40...

ApplicationStrange Ultra Case and HD Pro Case BenefitThe load bolt offers additional support during extreme conditions such as tire shakeThe steel tip is initially adjusted very close to the backside of the ring gearIf deflection occurs, it provides...

For the past two decades, Mark Williams Enterprises has continually improved the effectiveness and reliability of their 9" Ford Assemblies. They have introduced new and improved components, developed specialized tooling, and created detailed processes to...

For the past two decades, Mark Williams Enterprises has continually improved the effectiveness and reliability of their 9" Ford Assemblies. They have introduced new and improved components, developed specialized tooling, and created detailed processes to...

For the past two decades, Mark Williams Enterprises has continually improved the effectiveness and reliability of their 9" Ford Assemblies. They have introduced new and improved components, developed specialized tooling, and created detailed processes to...

Used for  a Jericho Transmission. Made of 4130 and Hardened.

For the past two decades, Mark Williams Enterprises has continually improved the effectiveness and reliability of their 9" Ford Assemblies. They have introduced new and improved components, developed specialized tooling, and created detailed processes to...

Kit for N1922 / N2322 supports using 28 spline pinion ApplicationStrange pinion supports N1922 / N2322Using a 28 spline pinion shaft Using a 35 spline pinion shaft? – See N1924 Kit IncludesTimken® front pinion bearing – N1930Adjustable...

Pro spool -Aluminum 40 spline Ford 9″ (3.812″ bore case ) ApplicationFord 9″ DescriptionHD Pro Series SpoolFor 40 spline axlesFits 3.812″ bore aftermarket case Features• Machined from 7075-T6 billet aluminum• Lightened...

Pro spool -L/W Steel 40 spline Ford 9″ (3.812″ bore case) ApplicationFord 9″ DescriptionHD Pro Series SpoolFor 40 spline axlesFits 3.812″ bore aftermarket case Features• Machined from 8620 forged steel• Lightened to...

ApplicationFord 9″ DescriptionS-Series SpoolFor 31 spline axlesFits 2.891″ or 3.062″ bore case Features• Manufactured from 8620 forged steel• Broached for Ford 31 spline axles• Same spline locations as OEM...

ApplicationFord 9″ DescriptionS-Series SpoolFor 35 spline axlesFits 3.250" bore case Features• Manufactured from 8620 forged steel• Broached for 35 spline axles with 30° pressure angle• Same spline locations as OEM...

Tapered Bearing Pinion Support, Fits 9" Ford Center Sections Used for Drag Racing ApplicationDrag Race Use Only For Street or Street & Strip – See N1917P FeaturesForged 2024-T351 aluminum bodyClear anodized finishMachined for oversized...

9" Ford (Less ring & pinion)-Package Includes: Ultra Case, Large Pinion Bearing Support, 40 Spline Steel Spool, 1350 Pinion Yoke 4130 material, 2-Magnet Collar, Sensor Bracket, All Brackets and All Hardware.

9" Ford (Less ring & pinion)-Package Includes: Ultra Case, Small Pinion Bearing Support, 40 Spline Steel Spool, 1350 Pinion Yoke 4130 material, 2- Magnet Collar, Sensor Bracket , All Brackets and All Hardware.