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Old 04-16-2003, 09:12 AM
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Post Ford 9" in a 57 chevy?

I'm building a stroker moter for my 57 chevy and I was thinking about putting a ford 9" rear end in it. It has the orig. rear end in it now and I don't know if it will hold up.
My questions are:
(1) Do you think the orig. rear end will hold up with the added torque and all?
(2) Should I put in a 9" or look for a 12 bolt?
(3) Are eather of these the right width for my car?
(4) I heard somewhere that you could get the gear ratio by turning the wheels and counting the revolutions of the tire and the drive shaft and deviding by something, Can you do it this way and what do you devide by?
Thanks! Rodrunner

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Old 04-16-2003, 09:22 AM
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Currie Enterprises in California sells a 9 inch that is the correct width and has the pad in the correct place for stock springs, most of the 12 bolts are too wide unless you can get one from a early comaro or nova. I have a stock rear in my 57 with a 300hp 327 and do not have any problems and a friend of mine has a 383 stroker in his with the stock rear with no problems just be sure to put in new bearings and seals.
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Old 04-16-2003, 11:03 AM
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I'm going to be installing a 74 Nova V8 rearend in my son's 57 Belair 2 dr Sedan in the next few weeks. It should be ""almost"" a bolt-in. I know I'll be removing the spring pads on the Nova and installing new ones. The u-joints are the same and if my measuring wasn't being used by an imbecile it should slide right back in.
Reason for changing rear? Bigger better brakes, improved highway ratio, this car car is driven daily. 327, AFB, Turbo 350, disc brakes in front, no power anything, great body.
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Old 04-16-2003, 03:31 PM
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Rodrunner, I have my 383 pulling a 57 rearend and I'm not concerned about it because it is so light the tires will light up way before reaching the breaking point. The 66-77 Bronco rears will work for you width wise, but I have not compared the pinion center to the axle flange of the two. The other thing is the 3.50 is the lowest number offered in the Bronco, but guess other 9" gears would work.

Trees
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Old 04-18-2003, 07:29 AM
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I would use the 9 inch. I used to run a 56 chevy with a stock rear with a 373 posi. Let me tell you that when they come apart it is really somthing to see. I ran a 350/400 TCI and a 2500 stall. If the tires stick it will break. <img src="graemlins/drunk.gif" border="0" alt="[drunk]" />
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