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Supreme Being
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Last Login: Tuesday, February 01, 2011 1:32 PM
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| Thanks ted - If I purchase a complete 28 spine unit, will it need to be test fit / adjusted for my vehicle? Or is it a bolt in because the ring and pinion and would be set / tested before I received it. Is there a company that anyone has used and/or recommends for a complete aftermarket diff? - John
John: Lake Forest, IL
'57 Fairlane 500 - Looking better every day.
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Supreme Being
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Last Login: Yesterday @ 7:33 AM
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| John. You can try to find one on Ebay or Craig's list, Gears are available from Summit/jegs or a local Speed shop. There will be some one in the chicago area who can set it up for you. If not, we can work out something with a buddy of mine here in the South Bend/ Elkhart area of Northern Indiana.
Frank/RebopBristol, In ( by Elkhart) 
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Supreme Being
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Last Login: Monday, January 30, 2012 2:53 PM
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| FYI, I run a 3:55 Detroit locker and at 75 mph I am reving right at 3000 rpm on the highway. I am Running 225 R16 radials on the car. So far my best time with a stock (mileage unknown) 292 / FMX combo has been 17:02 @ 87mph. I know I can hit the 16's with some tuning and some slicks as I have been told that I am spinning the tires off the line every time. Hopefully that gives you some insight as to where you should be. 
I love the smell of burning rubber in the morning!
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Supreme Being
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Last Login: 2 days ago @ 8:46 PM
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I bought a complete "Trac-Loc" with new 3.50:1 gears set up and ready to install for $350 + shipping three years ago on eBay, it was an easy swap and is working great to this day. I bought it from a guy in IN, maybe someone Frank knows. 
  God Bless. Tim http://yblockguy.com/ 338ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake" 312ci Y-Block '58 F-100
tim@yblockguy.com Visalia, California Just west of the Sequoias
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Supreme Being
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Last Login: Tuesday, February 01, 2011 1:32 PM
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| Thanks guys - I appreciate it. I'd like to think I can get to high 15s. (without building a new motor) Maybe i'm dreaming... Let me rephrase my previous post: What is a reasonable cost for a swap... I like the $350 that Tim mentioned. I see them online everywhere from $1300 to $150. Buying just new components seem to add up to approx. $600+
John: Lake Forest, IL
'57 Fairlane 500 - Looking better every day.
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Supreme Being
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Last Login: Sunday, February 05, 2012 10:43 PM
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| When I had my truck it had a 3.73:1 axle and the engine was spinning too fast for my taste at today's highway speeds. So it depends on how you are going to use the car. If you intend mostly street/strip then 3.89 would be OK but driving on a longish trip would get on the nerves (at least on mine). If you are planning on longer trips than I would say 3.50 would be a fairly good compromise although the word is compromise. Who ever suggested checking the tire patch was on target because 2.6+sec 60' times indicate that you are quite slow at that point on the track. A locking rear axle will help but you need to check tire pressures no matter what and play around until both wheels spin at low pressure. One thing with radials, if you go too low with pressure they will only contact the pavement on the outsides edges of the tires. You will see this as two stripes of black from one or both tires. I run about 18 psi on my street tires with a Traction lok and I can get about 2.0-2.1 60' times, stickshift T bird. So far DOT slicks didn't help that much maybe 1.9 -2.0. There may be engine issues also but others are on them!
Doug TThe Highlands, Louisville, Ky. 
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Supreme Being
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NewPunkRKR (10/22/2009)
I like the $350 that Tim mentioned. + I hope you know I ment a complete third member (pumpkin) not the whole rearend. 
God Bless. Tim http://yblockguy.com/ 338ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake" 312ci Y-Block '58 F-100
tim@yblockguy.com Visalia, California Just west of the Sequoias
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Supreme Being
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Yeah, that's what I'm looking for. I've never had any problems with the axel, so I'm assuming all the other components are in good shape. I looked online for diff. components and also complete 3rd members and it was typically around $700-800 for a rebuild unit. I'd like to find something for much less.
John: Lake Forest, IL
'57 Fairlane 500 - Looking better every day.
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Forum Newbie
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Last Login: Wednesday, December 30, 2009 12:27 PM
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| John- You have probably checked this, but in case you have'nt, be sure the intake/carb spacer will allow your secondaries to open. The stock items won't allow throttle plates much bigger than stock to open. David C.
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