9" Center Sections & Components
Build a bulletproof rear end with 9-inch center sections and components from Quarter-Max. We offer lightweight aluminum and heavy-duty nodular iron third-member cases, precision ring and pinion gear sets, full spools, pinion supports, yokes, and setup hardware engineered to handle extreme launch torque and maximize power transfer down the track.
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9 in. Pro Stock Third Member Assembly - Large Pinion
Mark Williams
$3,779.99Aluminum through bolt case (3.812 in. Bore), aluminum spool (40-spline), MW 35-spline 1350 series pinion yoke, ball / tapered bearing support, large pinion 9310 pro gear. All MW thirdmembers include...MWE-57009$3,779.99 -
9 In. Top Sportsman Thirdmember Assembly - Large Pinion
Mark Williams
$3,779.99MW Aluminum through bolt case (3.812" bore), aluminum caps, lightweight steel spool (40-spline), 1/2" ring gear bolts, MW 35-spline 1350 series pinion yoke, ball / taper bearing pinion support, and...MWE-57011$3,779.99 -
9" Pro Stock Thirdmember Assembly - Standard Pinion
Mark Williams
$3,779.99Aluminum through-bolt case (3.812" Bore), aluminum spool (40-spline), MW 28-spline 1350 series steel pinion yoke, ball / tapered bearing pinion support, 9" Ford standard pinion 9310 Pro Gear. (54...MWE-57019$3,779.99 -
Ford 9", 40 Spline, Lightweight Steel Spool
Mark Williams
$488.25Typically used in TA/D and Pro Modified Cars. For 3.812" bore case (57448 or 57448-95S is required). Uses 1/2" bolts. Manufactured from through hardened 4140 high strength steel, black oxide coated...MWE-53125$488.25 -
Strange Aluminum Ultra Case Assembly, HD 40 Spline Lightweight Steel Spool, 28 Spline Pro Gear & Chrome Moly Yoke
Strange Engineering
$2,475.003.812″ 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...STR-PRF215$2,475.00 -
Strange Aluminum Ultra Case Assembly, HD 40 Spline Lightweight Steel Spool, 28 Spline Pro Gear & Female Coupler
Strange Engineering
$2,475.003.812″ 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...STR-PRF210$2,475.00 -
Strange Aluminum Ultra Case Assembly, HD 40 Spline Lightweight Steel Spool, 35 Spline Pro Gear & Chromoly Yoke
Strange Engineering
$2,590.003.812″ 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...STR-PRF225$2,590.00 -
Strange Aluminum Ultra Case Assembly, HD 40 Spline Lightweight Steel Spool, 35 Spline Pro Gear & Female Coupler
Strange Engineering
$2,550.003.812″ 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...STR-PRF220$2,550.00 -
Strange Aluminum Ultra Case Assembly, Lightweight 35 Spline Steel Spool, 28 Spline Pro Gear & Chrome Moly Yoke
Strange Engineering
$2,354.003.250″ 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...STR-PRF205$2,354.00 -
Strange Aluminum Ultra Case Assembly, Lightweight 35 Spline Steel Spool, 28 Spline Pro Gear & Female Coupler
Strange Engineering
$2,354.003.250″ 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...STR-PRF200$2,354.00 -
Strange Ball Bearing Pinion Support, Fits 9" Ford Center Sections Used For Drag Racing
Strange Engineering
$395.00Strange 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...STR-N1921$395.00 -
Strange Load Bolt Assembly for Strange Ultra Case & HD Pro Aluminum Case
Strange Engineering
$39.00ApplicationStrange 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...STR-N1910H$39.00 -
Strange Pinion Support Bearing Kit for Use with 28 Spline Pinion Shaft
Strange Engineering
$120.00Kit 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®...STR-N1923$120.00 -
Strange Pro Series HD Aluminum Spool, Fits Ford 9" with 40 Spline Axles
Strange Engineering
$450.00Pro 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...STR-D2004$450.00 -
Strange Pro Series HD Lightweight Steel Spool, Fits Ford 9" with 40 Spline Axles
Strange Engineering
$295.00Pro 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...STR-D2002$295.00 -
Strange Pro Series Nodular Iron Case Assembly, Aluminum Support with Lightweight Steel Spool, 28 Spline Pro Gear & Chrome Moly Yoke
Strange Engineering
$1,650.00Complete Center Section Includes: N2205 / N22063.062″ Bore S-Series Case used for 28 or 31 spline3.250″ Bore S-Series Case used for 35 spline 8-10% stronger material than factory nodular...STR-PRF115$1,650.00 -
Strange S-Series Nodular Iron Case Assembly, Daytona Pinion Support with Differential Standard Gear & 1350 Series Yoke
Strange Engineering
$1,475.00Complete Center Section Includes: N2205 / N22063.062″ Bore S-Series Case used for 28 or 31 spline3.250″ Bore S-Series Case used for 35 spline 8-10% stronger material than factory nodular...STR-PRF130$1,475.00 -
Strange S-Series Steel Spool for Ford 9" with 31 Spline Axles
Strange Engineering
$179.00ApplicationFord 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...STR-D1516$179.00 -
Strange S-Series Steel Spool for Ford 9" with 35 Spline Axles
Strange Engineering
$179.00ApplicationFord 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...STR-D1518$179.00 -
Strange Tapered Bearing Pinion Support, Fits 9" Ford Center Sections Used for Drag Racing
Strange Engineering
$150.00Tapered 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...STR-N1922$150.00 -
Strange Ultra Case Kit - Large
Strange Engineering
$2,399.919" 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...STR-P3812LBQM$2,399.91 -
Strange Ultra Case Kit - Small
Strange Engineering
$2,418.299" 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...STR-P3812SBQM$2,418.29