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Ford 9" Ring and Pinion Differential Parts Print E-mail
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Having problems with Ford 9 inch rear end?  We offer the most complete line of rear end parts for the Ford 9 inch differential including ring and pinion set, this differential was utalized by Ford as early as 1957 in the Fairlane followed by the Mustang in 1965 to 1973. Bronco and Van in the 60's thru the 80's. It was also used in the Mercury Cougar, Montego, the LTD, Torino, Granada, Monarch and Versailles.

 

In addition the Ford 9 inch differential is the most popular differential of choice for race and custom car bulder. It is the most popular differentials and because of its strength, provided by rear pinion support bearing design it has found its way into many custom steet, off road and racing applications.  Our inventory includes ring gear and pinion sets, including aftermarket and OE gear sets. We are able to Ford 9supply axles, bearing overhaul kits, carriers, cases, spider and side gears. Positraction units we offer include Lockrights by Powertrax, Auburn, Detroit Lockers, Trac Loc and ARB air lockers. Purchase your parts @ drivetrain.com and receive telephone access to experienced differential technician to assist you with installation, we help you solve the problem.

 

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Applications

 

MG Part #

OEM #

Teeth

Ratio

F9-300

COAZ4209A

39-13

3.00

F9-325

B8AZ4209C

39-12

3.25

F9-350

C9OZ4209A

35-10

3.50

F9-370  

37-10

3.70

F9-389

B7AZ4209E

35-9

3.89

F9-411

B7AZ4209K

37-9

4.11

F9-456  

41-9

4.56

F9-486  

34-7

4.86

 

 

Model

Year

  Model

Year

Bronco

67-86

  Cougar

67-79

E-200

68-74

  Montego

68-76

F100-150

70-86

  LTD II

71-79

E100-150

86-87

  Torino

71-79

Ford Full Size

57-78

  Granada

75-80

Fairlane

64-70

  Monarch

75-80

Mustang

65-73

  Versailles

77-80


What differential ratio do you have?

Need information on how to setup ring and pinion backlash

 

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Specifications

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11-3/4"

10 HOLES
OVAL Gasket Patter

 

  • RG DIAMETER 9"
  • 10 7/16" X 20 RH THREADED BOLTS
  • PINION DIAMETER 1.313" 28 SPLINE
  • NO CASE BREAKS

    Street Gears - 8620 Material Heat-Treated

    Note: Pinion pilot bearing area may require grinding for gear clearance.

    Assembly Specifications:

  • Cover Bolt Ft. Lbs. 30-45
  • Pinion Brg. Preload In. Lbs 22-23
  • Pinion Brg. Preload In. Lbs 10-14 Used
  • Ring Gear Backlash .008-.012
  • Ring Gear Bolt to case Ft. Lbs. 60-80
  • Side Brg. Caps Ft. Lbs. 75-85

Our PERFORMANCE...Gears OUTPERFORMS THE COMPETITION!!!!!!

Purchase your parts @ drivetrain.com and receive telephone access to experienced differential technician to assist you with installation, we help you solve the problem.

Illustrations to help you identify parts you need:
Ford 9" Differential
Ford 9" Open Carrier
Ford 9" Track-loc


Ford 9" Street Gears


 
Order Part Number

Price

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F9-300

$216.66

F9-325

$216.66

F9-350

$218.88

F9-370

$216.66

F9-389

$200.00

F9-411

$175.75

 
F9-456

$200.00

 
F9-486

$216.66

 
DTSR9RMKT BEARING KIT 1957 & later

$127.87

 

Ford 9" Differential Parts

     
Description

Part Number

Price

 
Case Open (Empty) 28 or 31 Spline
MWD0OZ4204D

$160.00

Loud clunks when shifting into reverse may be eliminated by installation of Internal Parts Kit, check u-joints and yoke splines first.
Internal Part Kit 31 spline, 1.32", 4 pin Open

DTSMWF9-IOH 

$157.87

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Installation Tool, Your cost $48.98 + S&H

Internal Part Kit 31 spline, 1.32", 2 pin Open

DTSMWF9-IO 

$123.83

Internal Part Kit 28 spline, 1.20", 4 pin Open

DTSMWF9-IO28H 

$278.28

Internal Part Kit 28 spline, 1.20",  2 pin Open

DTSMWF9-IO28 

$123.53

Internal Part Kit 28 spline,  1.20",  2 pin Posi

DTSMWF9-IP28H 

$278.28

Internal Part Kit 28 spline, 1.20", 2 pin Posi

DTSMWF9-IP28 

$176.67

Internal Part Kit 31 spline, 1.32", 4 pin Posi DTSMWF9-IPH 
 $171.51
 Internal Part Kit 31 spline, 1.32" 2 pin Posi DTSMWF9-IP
 $351.98
 CLutch Pack Kit  (4 TAB)  (1 Per Unit) DTSMW F9-CPK  $63.43
Bearing/Overhaul Kit 31 spline 3.06 OD Carrier brgs (no shims) brg kit only pinion seal & nut included

*R9R306

$118.67

Bearing/Overhaul Kit 28 spline 2.89 OD Carrier brgs

*R9RMKT

$106.67

Use with 28 spline (LM501349 Bearing)
Axle, 66-75 Bronco Small Bearing 27 1/4" 28 spline

PA-5781L

$111.33

 
Axle, 66-75 Bronco Small Bearing 29 5/8" 28 spline

PA-5781R

$128.75

TOUGH Axles!

  • Superior Alloy
  • Induction Hardened
  • Rolled Splines
  • 2 year warranty!

EV Axle Kits feature larger 31 splines for extreme duty applications, cold formed rolled spline process that produces an axle spline up to 35% stronger. 5 year warranty. Kits include bearings, studs and seals.

Axle, 66-75 Bronco Large Bearing 26 15/16" 28 spline

PA-5783L

$128.75

Axle, 66-75 Bronco Large Bearing 29 5/16" 28 spline

PA-5783R

$124.00

Axle, Bronco Large Bearing 27 1/4" w/10" Brk 28 spline

PA-5785L

$124.00

Axle, Bronco Large Bearing 29 3/4" w/10" Brk 28 spline

PA-5785R

$124.00

Axle, Bronco Large Bearing 27 1/4" 28 spline

PA-5787L

$124.00

Axle, Bronco Large Bearing 29 11/16" 28 spline

PA-5787R

$124.00

Axle, Various 9" models 31 51/64" 31 spline L&R

MWD6TZ4234A

$119.99

Axle, 66-75 Bronco Small Bearing 27 1/4" 31 spline Big Spline Option (Pair)

EV-90

$359.97

 
Axle, 66-75 Bronco Large Bearing 26 15/16" 31 spline Big Spline Option (Pair)

EV-91

$359.97

Axle, 74-75 Bronco Large Bearing 27 1/4" 31 spline Big Spline Option (Pair)

EV-92

$359.97

Axle, 76-77 Bronco Large Bearing 27 1/4" 31 spline Big Spline Option (Pair)

EV-93

$359.97

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. This new Redline synthetic gear oil is oil2_small.jpgrecommended for replacement when replacing ring gear, pinion sets and or bearings,  Red Line Oil     Axle bearings ride on the axles and overtime wear-out the axle, leaking axles should be replaced before differential fluid is lost and cause you major repair costs.
*Installation Bearing overhaul Kits include: Pinion nut, Pinion seal, crush sleeve, pinion shims, carrier shims, ring gear bolts, locking compound, brush & gasket. Overhaul kit includes: all of the above plus pinion bearings, races, carrier bearings and races.

**Internal Part Kit includes spider/side gears, thrust washers & cross-shaft for non-positraction carriers.

Ford 9" Differential Positraction Units

   
Description

Part Number

Price

ARB 31 spline

RD55B

$967.03

Auburn Limited Slip 28 spline

542043

$585.95

Auburn Limited Slip 31 spline

542036

$585.95

ARB Air Locker 31 spline *

RD55

$648.15

Torq-Line Positraction Limited Slip 28 spline

US07-090728

$393.00

Torq-Line Positraction Limited Slip 31 spline

US07-090731

$393.00

Ford Traction Loc Posi- 28 spline

MWD3SZ4026A

$458.20

Ford Traction Loc Posi- 31 spline

MWD4TZ4026A

$441.75

Detroit C Locker 28 spline

187SL-13A

$572.15

Detroit C Locker 31 spline

187SL-17B

$572.15

Detroit True-Trac 31 spline S

913A328

$538.75

LockRight Solid Positraction 28 or 31 spline

1810

$314.25

Powertrax no-Slip Positraction 28 spline open

92-0690-2800

$452.76

Powertrax no-Slip Positraction 31 spline open

92-0690-3100

$452.76

Powertrax no-Slip Positraction 35 spline open

92-0690-3500

$452.76

* Air compressor    $309.28

Ford 9" Differential

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Ford 9" Open Carrier

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Ford 9" Track Loc Posi

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