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RB
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Group: Forum Members
Last Active: 3 Months Ago
Posts: 647,
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Eric
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Hitting on all eight cylinders
Group: Forum Members
Last Active: 7 Years Ago
Posts: 7,
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RB Thankyou for the photos and measurements of your rear axle. It looks exactly what I have. If the ring and pinion gears are good and runable, I am interested in it. Also if you can confirm it is a 3.22 ratio. What is a good time and number I can contact you? Thankyou.
Eric
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Ted
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Group: Administrators
Last Active: Yesterday
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Eric (12/17/2017)
I have a 1956 ford Fairlane differential with 3.90 ratio. Would like to go to 2.90 or 3.0 What would be the easiest option? Is there something else i can bolt right up to same housing? It has 17 spline axle shafts. Thanks The ’57-58 car 9” rear ends are pretty much a direct bolt in for the ’55-56 Ford cars. As mentioned, a different u-joint is required. The ’59 housings are the same widths but the spring perches are slightly more outboard. I have seen the '59 rears used with the springs being slightly arched outwards in the earlier Fords but I’ve gone to the trouble to simply relocate the spring perches on those slightly inboard in which to compensate. The rear end housing in my ’55 Customline is out of a ’58 Fairlane and I used it in its entirety with the original ’55 emergency brake cables hooking up as they should. I did have to modify the stock drive shaft to use the later model u-joint.
  Lorena, Texas (South of Waco)
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Lou
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I see problem here, a 3.90 gear should give you about 2700 RPMs at 60 MPH not 3700 RPMs. If you are turning 3700 RPMs at 60 Mph then your transmission is not shifting into high gear, check the Modulator and hose to it .
A 3.22 rear gear would give you 2350 RPMs at 60 MPH.
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paul2748
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I realize I wasn't specific enough. I did mean the whole rear end housing. The 57-58 center section will not, as noted, bolt in to a 56 housing. Eric (12/18/2017)
Thankyou for the response! Do you know what model 57/58 would bolt in?
54 Victoria 312; 48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ
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RB
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Group: Forum Members
Last Active: 3 Months Ago
Posts: 647,
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axle flange to flange 57" Spring perch center to center 42.25" 
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RB
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Group: Forum Members
Last Active: 3 Months Ago
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Eric Give me a day or so and i can get that to you.. It came right out of a 56 Victoria
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Eric
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Hitting on all eight cylinders
Group: Forum Members
Last Active: 7 Years Ago
Posts: 7,
Visits: 261
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RB Thank you for the response. I may have interest in that. Do you have photos or dimensions? Axle flange width? Spring perch centers? Thank you
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Eric
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Hitting on all eight cylinders
Group: Forum Members
Last Active: 7 Years Ago
Posts: 7,
Visits: 261
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Thankyou for the info. I will keep my eyes open.
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MoonShadow
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Group: Forum Members
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Cougar and early Bronco are narrow too. You may need to switch axles on the Bronco as its a 5x5.5".
Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.
 
MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire
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