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  Mustangsandmore Forum Archive
  Old Fords and Mercurys
  57-59 Ranchero Or Wagon 9" rear?

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Author Topic:   57-59 Ranchero Or Wagon 9" rear?
Blacksmith
Gearhead

Posts: 604
From: Front Royal, Va., USA
Registered: Feb 2006

posted 07-13-2006 10:38 AM     Click Here to See the Profile for Blacksmith        Reply w/Quote
I picked up a 9" rear for my 65 Mustang FB but am not sure about when/where it came from.
Casting code inside center section is:
WAA
4025B
Casting number on carrier is: WAA 4206-A

Date code on outside of center is: 78G DIF
with: 16 above the top horizontal rib.

Axle housing is straight 3" diameter, Approx. 53" housing flange to flange with Spring perches at about 43" center to center. Has Small bearing configuration with 2"x3-3/8" flange bolt pattern, early tapered style 28-spline axles & it had 11" drum brakes.

Thanks in advance for any info.
Joe

Rory McNeil
Gearhead

Posts: 1889
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 07-14-2006 12:44 AM     Click Here to See the Profile for Rory McNeil        Reply w/Quote
I don`t have information on the part numbers you have, but it sounds like you may have a 57-59 9", but likely from a passenger car, rather than a wagon or Ranchero. The wagon, Sedan Delivery and Ranchero rear ends have a larger axle bearing setup than the passenger cars. Easiest way to check is by the size of the nuts holding the axles bearing retainer to the housing. The pass car have nuts that a 9/16`s socket fits, while the wagon, SD & Ranchero take a 3/4" socket. One other minor note, all the 57-59 rearends use the skinny 2" wide leaf springs, so the spring perches will likely seem narrow on your wider springs, but they should not be a concern.

------------------
78 Fairmont 428 4 speed [email protected] 1.32 60 foot
80 Fairmont 302 5 speed [email protected]
85 Mustang NHRA M/Stock 302 5speed. [email protected] 1.63 60 foot
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

Blacksmith
Gearhead

Posts: 604
From: Front Royal, Va., USA
Registered: Feb 2006

posted 07-14-2006 06:15 AM     Click Here to See the Profile for Blacksmith        Reply w/Quote
Thanks for the info.
It does have the skinny 2" perches, but I figured I'd go ahead & weld some 3/16"-1/4" plate to them & the axle tube to beef them up a bit.

Did any of the early cars come with 11" drum brakes though? That was what made me think Ranchero or Station Wagon...Doesn't really matter much, just so can answer questions as to where it came from if I ever sell the car (not likely any time soon).

Thanks again.
Joe

------------------
66 GT350H clone
302, Holley 600, Tri-Y headers, Flowmasters, power front disc brakes.

Blacksmith
Gearhead

Posts: 604
From: Front Royal, Va., USA
Registered: Feb 2006

posted 07-23-2006 04:32 PM     Click Here to See the Profile for Blacksmith        Reply w/Quote
Re-checked measurements...
Spring perches are 2-3/8" wide (outside).
Housing is 52 7/8" flange to flange...Bronco??? Except it has 5 x 4.5" lug pattern...
Is 52 7/8" close enough to std. 65-66 Mustang width of 52 1/4" to use???

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