Trans Help Please
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From: Seattle WA.
Trans Help Please
In my search for a top shift 3 speed syncro trans to replace the crash box in my 51 I came across a side shift 3 speed that is next to perfect inside. It was locked up and i suspected the shift forks might be out-of-sink. Turns out it was the shift forks, I noticed while cleaning it, there was no speedometer hookup. I realized it nust be a torque tube unit.
My Question, if I can find a truck 3 speed floor shift case can I transfer all the international components from this case, into that case.
Thanks in advance for your response
Rod
My Question, if I can find a truck 3 speed floor shift case can I transfer all the international components from this case, into that case.
Thanks in advance for your response
Rod
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From: Seattle WA.
Originally Posted by 49willard
When you say that your current trans is a crash box, do you mean a heavy duty three speed? They are unique. The side loaders of that era were car or light truck transmissions.
Thanks for responding
Rod
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From: Seattle WA.
Hi Chris, It's the down shifting 4th to 3rd that gives me trouble. If I slow down to about 10-15mph around a corner with the 4:27 gears it's not too bad. My thoughts are with the 3:24 the drive shaft will be spinning a lot faster. Thus making the double clutch down shift a real grinding experience. I could be wrong on that, but I just been thinking it would be best to install a syncro trans a the sametime as the rearend. My biggest headache at the moment is my F1 is now my daily driver, I can't have it sitting for a week at this time. It's a two edged sword, when they sit we think it needs to be driven. When driven they quickly become a dependent vehicle and we can't afford to have it down. Don't understand it but my 87 Accord literly started having constant one thing after another happen just days after the F-1 was on the road. I think it was just luck I got it on the road when I did.
Last edited by 51ford fan; Aug 21, 2005 at 08:15 PM.
Fleet Mechanic
Joined: Jun 2004
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From: Minnesota
Rod,
If you switch to the 3:27 gears the drive shaft and everything will be spinning slower to do the same speed. Anyway, have you thought about a 4 speed out of a newer truck? I have a synchronized 4 speed out of a 1951 F600 that came with the the 254 flat 6 I bought. Did the 254 you bought have a transmission or is that the trip you need to make?
If you switch to the 3:27 gears the drive shaft and everything will be spinning slower to do the same speed. Anyway, have you thought about a 4 speed out of a newer truck? I have a synchronized 4 speed out of a 1951 F600 that came with the the 254 flat 6 I bought. Did the 254 you bought have a transmission or is that the trip you need to make?
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From: Seattle WA.
Thanks for correcting me, that rear might work ok with the driveshaft going slower, untill I can get the 5 speed installed. I would be intrested in your trans but the shipping alone to Seattle would probably cost a lot. Yes that's the trip I need to make, to pickup that engine.
Rod
Rod
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Cargo Master
Joined: Apr 2005
Posts: 3,337
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From: Harpswell Maine
Someone else should be able to help/verify the following. I was under the understanding that three different transmissions were available in F-1's (four techically if you count the both the light duty toploader and the side shifter-they contain the same gearsets). I ran my 49 initially with the light duty 3 speed floor shifter. After having to tear it down 2 or 3 times for repairs (I ran it behind a 56 Buick nailhead at the time), I found a heavy duty three speed which had spurcut gears with a syncro. There were no problems shifting that at all. Although it probably weighed 2 times the weight of the light duty 3 speed, it was a bolt in with the same length and output spline such that the driveshaft worked with either transmission. If the 4 speed is also a bolt in (I have not done this personnaly so I am not sure), then you can easily change to an open driveline (F-1) 3 speed floor shifter either light or heavy duty and get the sychro advantage. The key is the different output shaft/spine on the open driveline from the earlier torque tube type transmission. In my prime I could R&R a trans in the F-1 including a box teardown for damaged part replacement in under 3 hours. Good luck.
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Fleet Mechanic
Joined: Jun 2004
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From: Minnesota
Yes shipping would be expensive, maybe the person who has the engine still has the transmission that was bolted to it also.
Originally Posted by 51ford fan
Thanks for correcting me, that rear might work ok with the driveshaft going slower, untill I can get the 5 speed installed. I would be intrested in your trans but the shipping alone to Seattle would probably cost a lot. Yes that's the trip I need to make, to pickup that engine.
Rod
Rod
Postmaster
Joined: Mar 2000
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From: Waynesville, OH
Here is some info I looked up for a recent thread (use search function hint hint 
).
The 1949 F-1 transmissions included:
- Ford light-duty 3-speed with a three-on-the-tree [2.819:1 low gear ratio]
- Ford light-duty 3-speed with a floor shift [2.78:1 low gear ratio]
- Warner Gear Division heavy-duty 3-speed (T87D) [3.714:1 low gear ratio]
- WGD 4-speed crash-box (non-synchro spur gear T9) [6.4:1 low gear ratio]
The F-3 transmissions included:
- Warner Gear Division heavy-duty 3-speed (T87D) [3.74:1 low gear ratio]
- WGD 4-speed crash-box (non-synchro spur gear T9) [6.4:1 low gear ratio]
I think this is correct, but you can look here for the complete thread.
https://www.ford-trucks.com/forums/s...d.php?t=400594
).The 1949 F-1 transmissions included:
- Ford light-duty 3-speed with a three-on-the-tree [2.819:1 low gear ratio]
- Ford light-duty 3-speed with a floor shift [2.78:1 low gear ratio]
- Warner Gear Division heavy-duty 3-speed (T87D) [3.714:1 low gear ratio]
- WGD 4-speed crash-box (non-synchro spur gear T9) [6.4:1 low gear ratio]
The F-3 transmissions included:
- Warner Gear Division heavy-duty 3-speed (T87D) [3.74:1 low gear ratio]
- WGD 4-speed crash-box (non-synchro spur gear T9) [6.4:1 low gear ratio]
I think this is correct, but you can look here for the complete thread.
https://www.ford-trucks.com/forums/s...d.php?t=400594
Cross-Country
Joined: Oct 2004
Posts: 95
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From: Cape Cod
Crashbox with low rear gears
I ran a 52 Panel with 289, F1 4-speed crashbox, and Chrysler 2.73:1 rear for years. Double clutch downshifting becomes second nature. Highway cruising was effortless, 1st gear was plenty low enough (I usually started in 2nd). I first installed the rear with the three-on-the tree, and that was no fun, mostly 'cause the linkage was all worn out.
Don't hurt yourself getting that 4-speed up out of the truck - damn those things are heavy!
One quibble with the tranny list posted earlier - I'm under the impression that the three-on-the-tree was first availabe in 51. Ford advertised it as more room in the cab for your crew!
Don't hurt yourself getting that 4-speed up out of the truck - damn those things are heavy!
One quibble with the tranny list posted earlier - I'm under the impression that the three-on-the-tree was first availabe in 51. Ford advertised it as more room in the cab for your crew!
Cargo Master
Joined: Nov 2004
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From: Friendswood, Texas
Originally Posted by jrfiero
One quibble with the tranny list posted earlier - I'm under the impression that the three-on-the-tree was first availabe in 51. Ford advertised it as more room in the cab for your crew!
Cross-Country
Joined: Oct 2004
Posts: 95
Likes: 21
From: Cape Cod
Mid-50 changes
Originally Posted by texan2004
I believe the 3 on the tree first showed up mid-year 1950. Seems they did a lot of changing on the run that year (elimination of raised panels on F1 beds in 1950 also comes to mind).
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