We offer a complete line of rear end parts for the Ford 9.75" differential. You can purchase high quality ring and pinion gear sets in various ratios, high quality rear end bearing overhaul kits including pinion & carrier bearings, pinion seal, crush sleeve, pinion nut, shims, ring gear bolts, marking compound and gasket. Our inventory includes ring gear and pinion sets, including aftermarket and OE gear sets.

Having problems with Ford 9.75 inch rear end?  We can help, take advantage of our free technical support.   Our inventory includes ring gear and pinion sets, including aftermarket and OE gear sets. We are able to supply axles, internal kits for open carriers that include spider/side gears, crosshafts and trust washers, carriers, cases.

Positraction units we offer include Auburn, TrueTrac and Trac Loc

Along with our quality parts you have access to applications information for available ring and pinion ratios, information to assist you in identification of the differential that you have. Free information on ring and pinion installation is provided alone with specification and carrier/case breaks when you are considering gear ratio changes. You can review applications available to assist you with selection of the specific positraction unit that you may need to improve your performance.

 
Applications

MODEL

YEAR

Navigator

97 & Up

Expedition

97 & Up

E150 Van

97 & Up

E250 Van

97 & Up

E350 Van

97 & Up

F150 Pickup

97 & Up

Ford 9.75 Specifications:

  • R.G. Diameter 9.75"
  • 12-12MM x 26 RH Threaded
  • Pinion Diameter 1.970 31 Splines
  • No Case Breaks
  • 12 Bolt Cover

8620 Material - Heat Treated

Instructions for setting up ring

and pinion backlash

Just give a call 800-216-1632 take advantage of our free technical expertise.

 

Ford 9.75  Ring and Pinion Differential products..

For more information or to purchase on line click part number.

 

Ford 9.75 inch Ring Gear and Pinion Part Number, Tooth Count & Ratio

Quality guaranteed performance

Part Number

Description

Teeth

Ratio

WCFOR9.75-355

Ring & Pinion

OE

3.55

WCFOR9.75-373

Ring & Pinion

OE

3.76

MWF9.75-410

Ring & Pinion

41-10

4.10

MWF9.75-430

Ring & Pinion

43-10

4.30

MWF9.75-456

Ring & Pinion

41-9

4.56

MWF9.75-489 Ring & Pinion 39-8 4.89
MWF9.75-513 Ring & Pinion 39-8 5.13

Installation Bearing Overhaul Kits:

 
Part Number

Description

Your gears run cooler and last longer!

 

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Order above high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $49.95 plus S&H, a $54.00 value.

 
MWR9.75FR Bearing Kit (bearings only)
MWR9.75FRT Bearing Kit (Timken Brg.) (bearings only) 1997-1999
MWR9.75FRL Bearing Kit - Late (bearings only) 1999.5 newer
MWR9.75FRLT Bearing Kit - Late (Timken Bearing) (bearings only)
 MWR9.75FRMK Bearing Kit - 1997-1999
 MWR9.75FLRMK Bearing Kit - 2000 and later
WCIKF9.75 Bearing Overhaul Master Kit bearings, gaskets, seal shims, ring gear bolts and marking compount (axle bearings and seal not included) 1998 older
WCIK9.75B Bearing Overhaul Master Kit bearings, gaskets, seal shims, ring gear bolts and marking compount (axle bearings and seal not included) 1999 newer
DTSFord12Bolt 9.75" Differential Cover Ford 150 & Ford Excursions wirt 12 bolt covers, holds 5 quarts. Increase the fluid capacity, you will find that the fluid will run 15 to 20 degrees cooler.

 

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Positraction Units:

 
542090 Auburn Limited Slip  
DTS913A477 Eaton TrueTrac 34 Spline  
DTS73106X Dana Trac Lok