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F9 Trac Loc Unit ( positraction ) Full Spool Center Section 31 spline 9" Ford Assemble Full Spool Center Section 28 spline 9" Ford Assemble
F9 Trac Loc Unit ( positraction )
Our Price: $469.02
Sale Price: $369.00
Savings: $100.02
Ford 9" Trac Loc Clutch Style Posi
  • 1.78" bearing journal size
  • choose 28 or 31 axle spline
  • forged hat much stronger than OEM
  • great for street driving and high performance.
  • assembled in our plant at St. Clair, MO
  • clutch discs soaked in friction modifier before assembly
  • USA manufactured clutch discs
Assembled Center Section for 9" Ford with PEM ring & pinion and standard 31 spline steel spool, PEM new nodular iron case and pinion support, 31 spline spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT Great for Circle Track!

Ratios Available 3.50, 3.70, 3.89, 4.11, 4.30, 4,57, 4.63, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50



Assembled Center Section for 9" Ford with PEM ring & pinion and offset spool, PEM new nodular iron case and pinion support, 28 spline standard steel spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT!

Ratios Available 3.50, 3.70, 3.89, 4.11, 4.30, 4,57, 4.63, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50.


Lightened Full Spool Center Section 28 spline 9" Ford Assembled Lightened Full Spool Center Section 31 spline 9" Ford Assembled Deeper Ratio Full Spool Center Section 31 spline 9" Ford Assembled
Assembled Center Section for 9" Ford with PEM Lightened ring & pinion and standard steel 31 spline spool, PEM new nodular iron case and pinion support, 28 spline spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT

Lightened Ratios Available 4.11, 4.30, 4,57, 4.63, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50.


Assembled Center Section for 9" Ford with PEM Lightened ring & pinion and standard steel 31 spline spool, PEM new nodular iron case and pinion support, 31 spline spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT!

Lightened Ratios Available 4.11, 4.30, 4,57, 4.63, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50.


Deeper Ratio Assembled Center Section for 9" Ford with PEM lightweight ring & pinion and standard steel 31 spline spool, PEM new nodular iron case and Iron Daytona pinion support, 31 spline spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT

Ratios Available 6.66, 6.83, 7.00.\


Xtreme Gear Center Section 28 spline 9" Ford Assembled Xtreme Gear Center Section 31 spline 9" Ford Assembled 31 spline Special Ratio Full Spool Center Section 9" Ford Assembly
Assembled Center Section for 9" Ford with Xtreme Gear lightweight ring & pinion and offset spool, PEM new nodular iron case and pinion support, 28 spline spool, 1310 Forged steel yoke.

ALL NEW UNIT

Ring & Pinion manufactured in the USA.



Assembled Center Section for 9" Ford with Xtreme Gear lightweight ring & pinion and offset spool, PEM nodular iron case & pinion support, 31 spline spool, 1310 Forged steel yoke.

ALL NEW UNIT! Ring & Pinion manufactured in the USA

Ratios Available 4.11, 4.30, 4,57, 4.63, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 6.20, 6.33, 6.50.


Assembled Center Section for 9" Ford with PEM standard weight ring & pinion and standard steel 31 spline spool, PEM new nodular iron case and pinion support, CHOOSE 28 or 31 spline spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT

Special Ratios Available 5.37, 5.50, 5.57 and 5.75.



Deeper Ratio Full Spool Center Section 28 spline 9" Ford Assemble Drag Race Center Section 4:86 ratio 9inch Nodular Iron PRO Gear PEM Nodular Iron Ford 9 inch Center Section with New Trac Loc
Deeper Ratio Assembled Center Section for 9" Ford with PEM lightweight ring & pinion and standard steel 31 spline spool, PEM new nodular iron case and Iron Daytona pinion support, 28 spline spool, choice of yoke (1310 short or 1330 short series).

ALL NEW UNIT

Ratios Available 6.66, 6.83, 7.00.

This PEM Racing Brute Gear Center Section will be Assembled and set up for Drag Racing by Professionals.

  • PEM "Brute" Nodular Iron 36 lb. HD Case with 3.25" OD Carrier Bearings
  • 4.86 Ratio PEM Gear 9310 PRO Standard 28 spline Ring & pinion
  • Only 4.86 ratio at this price
  • PEM 35 spline spool (will not work with Mark William Axles)) OR 40 spline spool
  • Black Daytona 5 bolt pinion support for strength.
  • Billet Steel 28 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.
All New Unit. PEM Nodular Iron Ford 9 inch Center Section
with New Trac Loc (posi) for street driving, Specify US Gear ring & pinion
ratio wanted. Assembled.
9 inch Ford 28 spline HELI TRAC PEM Nodular Iron  Center Section 4.29 ratio Xtreme Gear Drag Racing Center Section 9" Ford Brute Nodular Iron PRO Gear Drag Race Center Section 9" Ford 3.25 Bolt Thru Case PRO Gear
9 inch Ford 28 spline HELI TRAC PEM Nodular Iron Center Section
: $1,388.48
Our Price: $1,388.48
Sale Price: $1,143.45
Savings: $245.03
All New Unit. PEM Nodular Iron Ford 9 inch Center Section
with New HELI TRAC gear driven differential for street driving,
Specify US Gear ring & pinion ratio wanted (manufactured in the USA).
For 28 spline axles
Assembled unit.
This 4.29 ratio Xtreme Gear Center Section will be Assembled and set up for Drag Racing by Professionals.

  • PEM "Brute" Nodular Iron 36 lb. HD Case with 3.25" OD Carrier Bearings
  • Xtreme Gear 9310 PRO Large Pinion 35 spline Ring & pinion,manufactured in the USA using only highest quality 9310 alloy steel.
  • 4.29 ratio
  • Xtreme Gear 35 spline spool (will not work with Mark William Axles).
  • Large 35 spline Aluminum Purple 5 bolt pinion support with large bearings for strength.
  • Forged Steel 35 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.



This Standard Size Pinion Drag Race Center Section will be Assembled and set up for Drag Racing by Professionals.

  • Yukon Gear aluminum 3.25" carrier bearing thru-bolt case
  • 4.86 Ratio PEM Gear 9310 PRO Standard Pinion 28 spline Ring & pinion,
  • Only 4.86 ratio at this price
  • PEM Racing Gear 35 spline spool (will not work with Mark William Axles).OR 40 spline spool
  • Black Aluminum Daytona Pinion Support for strength.
  • 1350 Billet 28 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.
9 inch Ford 31 spline HELI TRAC PEM Nodular Iron  Center Section Xtreme Gear 4.29 ratio Drag Racing Center Section 9" Ford 3.25 Bolt Thru Case PRO Gear US Gear Small Pinion 9310 9" Ford Brute Deeper Ratio Center Section
All New Unit. PEM Nodular Iron Ford 9 inch Center Section
with New HELI TRAC gear driven differential for street driving,
Specify US Gear ring & pinion ratio wanted (manufactured in the USA).
For 31 spline axles
Assembled unit.
This Xtreme Gear Center Section will be Assembled and set up for Drag Racing by Professionals.

  • Yukon Gear aluminum 3.25" carrier bearing thru-bolt case
  • Xtreme Gear 9310 PRO Large Pinion 35 spline Ring & pinion,manufactured in the USA using only highest quality 9310 alloy steel.
  • 4.29 ratio
  • Xtreme Gear 35 spline spool (will not work with Mark William Axles).
  • Large 35 spline Aluminum 10 bolt pinion support with large bearings for strength.
  • Forged Steel 35 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.

This Deeper Ratio PEM Racing Brute Gear Center Section will be Assembled
and set up for Drag Racing by Professionals.
  • PEM "Brute" Nodular Iron 36 lb. HD Case with 3.25" OD Carrier Bearings
  • US Gear 9310 PRO Standard 28 spline Ring & pinion; made in the USA
  • Choose Ratio;
  • PEM 35 spline spool (will not work with Mark William Axles) OR 40 spline spool.
  • Black Daytona 5 bolt pinion support for strength.
  • Billet Steel 28 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.

US Gear Center Section 9" Ford 3.25 Bolt Thru Case PRO Gear Xtreme Gear 4.11 ratio 9.5 Ford Drag Racing Center Section 3.25 Bolt Thru Case PRO Gear US Gear Drag Racing Center Section 9" Ford Brute Nodular Iron PRO Gear
This Standard Size Pinion Drag Race Center Section will be Assembled and set up for Drag Racing by Professionals.

  • Yukon Gear aluminum 3.25" carrier bearing thru-bolt case
  • US Gear 9310 PRO Standard Pinion 28 spline Ring & pinion,manufactured in the USA
  • Choose Gear Ratio, 5.14 ratio in now all that is available
  • PEM Racing Gear 35 spline spool (will not work with Mark William Axles) OR 40 spline spool.
  • Black Aluminum Daytona Pinion Support for strength.
  • 1350 Billet 28 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.

This Xtreme Gear Center Section will be Assembled and set up for Drag Racing by Professionals.

4.11 ratio 9.5" Ford 9310 PRO ring & pinion in the 3.25 carrier bearing case

  • Yukon Gear aluminum 3.25" carrier bearing thru-bolt case
  • 4.11 ration 9.5" Ford Xtreme Gear 9310 PRO Large Pinion 35 spline Ring & pinion,manufactured in the USA using only highest quality 9310 alloy steel.
  • Xtreme Gear 35 spline spool (will not work with Mark William Axles).
  • Large 35 spline Aluminum 10 bolt pinion support with large bearings for strength.
  • Forged Steel 35 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included
Make sure this big 9.5" ring gear will clear your rear end housing center.


This US Gear Center Section will be Assembled and set up for Drag Racing by Professionals.


  • PEM "Brute" Nodular Iron 36 lb. HD Case with 3.25" OD Carrier Bearings
  • US Gear Gear 9310 PRO Large Pinion 35 spline Ring & pinion,manufactured in the USA using only highest quality 9310 alloy steel.
  • Choose ratio from drop down menu
  • PEM 35 spline spool (will not work with Mark William Axles) OR 40 spline spool
  • Large 35 spline Aluminum Purple 5 bolt pinion support with large bearings for strength.
  • Forged Steel 35 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.
Eaton True Trac Nodular Iron Ford 9 inch Center Section US GEAR Center Section 9" Ford 3.25 Bolt Thru Case PRO Gear MOSER Drag Racing Center Section 9.5" Ford 3.81" Alum Bolt-Thru Case 9310 Gea
All New Unit.PEM Nodular Iron Ford 9 inch Center Section
with Eaton True Trac (gear unit), Specify if for 28 or 31 spline axles.
Specify US Gear ring & pinion ratio wanted. Assembled.
This Drag Race Center Section will be Assembled and set up for Drag Racing by Professionals.

  • Yukon Gear aluminum 3.25" carrier bearing thru-bolt case
  • US Gear Gear 9310 PRO Large Pinion 35 spline Ring & pinion,manufactured in the USA using only highest quality 9310 alloy steel.
  • Choose ratio from menu ( 3.50, 3.70, 3.89, 4.11, 4.29, 4.57, 4.71 or 4.86 )
  • PEM Racing Gear 35 spline spool (will not work with Mark William Axles) OR 40 spline spool
  • Large 35 spline Aluminum 10 bolt pinion support with large bearings for strength.
  • Forged Steel 35 spline 1350 Yoke.
  • 3.25 inch OD Carrier Bearing size x 2.00" ID bearing surface. Bearings will be Premium Koyo or Timken Brand.
  • U-bolts and housing gasket included.

MOSER aluminum 3.81" thru-bolt case with Xtreme Gear / Precision Gear 9310 PRO 35 spline 9.5" Ford Ring & pinion and Steel Spool.

  • 9310 PRO Ring and pinion is manufactured in the USA using only highest quality 9310 alloy steel.
  • This Center Section will be Assembled and set up for Drag Racing by Professionals.
  • UPDATED 3.21.2022 Only available in a 9.5" 40 spline spool with 2.25"journals
35 spline Eaton True Trac Nodular Iron Ford 9 inch Center Section
All New Unit.PEM Nodular Iron Ford 9 inch Center Section
with 35 spline Eaton True Trac (gear unit), Specify US Gear ring & pinion.
Has Daytona support and 1360 series forged steel yoke. Assembled