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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Gear HELP.... Need highway speed

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Old Dec 14, 2015 | 01:03 PM
  #16  
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Just regeared/rebuilt my '64 F-250 axle. Has Dana 60. Was originally 4.56 now 3.73. MUCH better on highway. The 292 was happy at 45 MPH. Running her at 55 or 60 sounded like she wanted to explode. Now will do 65 MPH no problem. Speedo off by about 20% now so 55 indicated is about 66 mph.

Like other say, check brakes, wheel bearings, susp. etc. I did a lot of work on mine and many parts were totally and dangerously worn out.

- WOT
 
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Old Dec 14, 2015 | 04:00 PM
  #17  
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55 is only about 2500rpm. If that is maxed out, then something is wrong. Maybe it only needs a tune up or maybe there are more serious issues.
 
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Old Dec 14, 2015 | 05:19 PM
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Worldoftone, Where did you get parts to rebuild your Dana 60 rear? I also have a '64
F-250 with 4.56 gears that i would like to put higher gears in.
john
 
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Old Dec 14, 2015 | 06:24 PM
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I like Summit Racing.
 
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Old Dec 14, 2015 | 06:30 PM
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Originally Posted by john jamieson
Worldoftone, Where did you get parts to rebuild your Dana 60 rear? I also have a '64
F-250 with 4.56 gears that i would like to put higher gears in.
john
Do you have the tools and knowledge of setting up a Dana rear?
 
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Old Dec 14, 2015 | 06:33 PM
  #21  
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1972RedNeck
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Originally Posted by hiball3985
Do you have the tools and knowledge of setting up a Dana rear?
Only one way to get the knowledge and what extra tools do you need? A case spreader is nice but I have set up over 10 Dana's without it. I don't see why people go around trying to scare people away from setting up their own diffs. It's not hard at all, it just takes a little patience.
 
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Old Dec 14, 2015 | 06:43 PM
  #22  
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Originally Posted by 1972RedNeck
Only one way to get the knowledge and what extra tools do you need? A case spreader is nice but I have set up over 10 Dana's without it. I don't see why people go around trying to scare people away from setting up their own diffs. It's not hard at all, it just takes a little patience.
I'm not trying to scare anyone! But I'll bet 9 out of 10 people on the forum can't set up rear end properly.
 
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Old Dec 14, 2015 | 09:55 PM
  #23  
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I have the patience and mechanical aptitude to do that kind of work after I study how to do it and then study some more. I was wondering more about parts for the '64 Dana 60.
Others have mentioned that they have an obsolete spline pattern that makes it hard to change out for higher gears.
john
 
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Old Dec 14, 2015 | 11:01 PM
  #24  
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Originally Posted by john jamieson
I have the patience and mechanical aptitude to do that kind of work after I study how to do it and then study some more. I was wondering more about parts for the '64 Dana 60.
Others have mentioned that they have an obsolete spline pattern that makes it hard to change out for higher gears.
john
I applaud you for taking on the challenge. I've been building engines and trans since 1964 but I still leave rear ends to people more qualified then myself.
 
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Old Dec 15, 2015 | 07:39 AM
  #25  
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It's a future challenge. LOL In the mean time I am also on the lookout for a rear end from a latter truck to just swop out. Sometimes it's a cheaper way to go.
 
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Old Dec 15, 2015 | 05:15 PM
  #26  
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Originally Posted by john jamieson
It's a future challenge. LOL In the mean time I am also on the lookout for a rear end from a latter truck to just swop out. Sometimes it's a cheaper way to go.
Sometimes it is as long as you are lucky and get a good one..
 
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Old Dec 15, 2015 | 07:14 PM
  #27  
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I went from a 4.56 to a 3.73 I sourced from a '75-ish 250. The axle spline count was the same. I had a pro do the gear swap because the later axle is not a bolt-in. I won't set up a rear end. I am told that a guy should learn on a Ford 9" before tackling a D60 but of course there are exceptional people.
My new cruising speed made for quieter cruising but further exposed the inadequacy of my brakes...
Eric
 
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Old Dec 15, 2015 | 07:23 PM
  #28  
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Originally Posted by 6t6merc
My new cruising speed made for quieter cruising but further exposed the inadequacy of my brakes... Eric
And the new cruising speed + new brakes expose the inadequacy of the coal-cart suspension...
 
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Old Dec 15, 2015 | 07:54 PM
  #29  
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I must agree that unless you are set up to do those pumpkins, leave it to those that are. I have done a fare amount of them, including ones for motorcycles. It is very precise work.
You need a very strong jig to mount them, not to mention a torque wrench that can handle 300 + lbs.
I no longer have my shop and thus would not attempt it. Unless your set up for it, expect to open up your wallet.
I have no doubt you may have the talent to learn, BUT?
Good luck on your journey.
:-)
 
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Old Jan 2, 2016 | 12:13 PM
  #30  
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Keylon
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62 f-250, 223 i6, t-98 4, 4.88, wrongbed...have similiar desires.
will go a hair over 50 at about 3200rpm...like the street legal tractor that it is.
had the engine rebuilt, now the flywheel/clutch/pressure plate.
will be lookig at the rear end next.


 
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