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Help driving a 1964 f250 4 speed with granny gear

 
  #16  
Old 05-11-2018, 11:30 AM
daveengelson
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Suggest check the clutch pedal adjustment, there should be no need to double clutch?

Posting link of clutch assembly and possible info? Issue comes up on occasion; suggest run and advanced search on topic and narrow field to the 61-66 forum.

https://www.ford-trucks.com/forums/1...disengage.html
 
  #17  
Old 05-11-2018, 04:23 PM
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Originally Posted by NumberDummy View Post
Warranty Plate TRANS code F = 1961/64 Borg-Warner T-98 4 Speed. Look closely, because the F may be mixed in with the previous BODY code or the following AXLE code.

If there's no TRANS code, the DSO code will contain 6 numbers denoting a Domestic Special Order. This means that whatever trans was installed was not an RPO (Regular Production Order).

So, it will not be a T-98 that is synchronized in 2nd/3rd/4th gear.

Of course, by now, the syncro brass blocker rings are probably worn, so the trans could grind in any gear. Double clutching will solve the problem, that is if you know how to do it.

I found the small metal tag. It looks like it reads cp-ce-ea . Directly below that is 224716 and then a small logo. From the cab I can see 224715 on the top of the trans and the round metal plate towards the rear wheels has 221408. Will these help identify it?
 
  #18  
Old 05-11-2018, 04:33 PM
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The case number seems to indicate a Clark 250V-13, 250V-18 or 251VO-18

http://www.roadranger.com/ecm/groups..._apmt-0069.pdf

Go to page #3 and it's the first 3 rows in the CASE column.

Chad
 
  #19  
Old 05-11-2018, 04:47 PM
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The 251VO-18 is the only overdrive of the 3 listed so if you get it into high gear and can figure out your engine RPM, then given the trucks rear axle ratio and tire size it would be possible to do a calculation to determine if you have overdrive. One way to do it, anyway, without pulling the transmission out of the truck.

Chad
 
  #20  
Old 05-11-2018, 10:43 PM
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Originally Posted by daveengelson View Post
Suggest check the clutch pedal adjustment, there should be no need to double clutch?

Posting link of clutch assembly and possible info? Issue comes up on occasion; suggest run and advanced search on topic and narrow field to the 61-66 forum.

https://www.ford-trucks.com/forums/1...disengage.html
If you have no synchro and want to shift with the clutch, you have to double clutch it.
 
  #21  
Old 05-11-2018, 10:49 PM
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Originally Posted by TA455HO View Post
The case number seems to indicate a Clark 250V-13, 250V-18 or 251VO-18
As previously stated, it does look like a Clark.

IIRC, the 250/251 Clarks are not synchronized in any gear.

If this is the case, you are going to have to learn how to drive truck.

As a daily Clark driver, I will give you this for advise:

Use the clutch to start from a stop and NEVER use it while moving.

Once you get the hang of it, you will get along fine.

If you try to clutch it every shift, you will hate it.
 
  #22  
Old 05-11-2018, 11:00 PM
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Did a little more looking a couple years back when I was gathering info. Looks like the 250/251 could be special ordered from the factory.

Originally Posted by tripleframe View Post
Agian, available means DSO.
 
  #23  
Old 05-11-2018, 11:52 PM
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Originally Posted by 1972RedNeck View Post
As previously stated, it does look like a Clark.

IIRC, the 250/251 Clarks are not synchronized in any gear.

If this is the case, you are going to have to learn how to drive truck.

As a daily Clark driver, I will give you this for advise:

Use the clutch to start from a stop and NEVER use it while moving.

Once you get the hang of it, you will get along fine.

If you try to clutch it every shift, you will hate it.
Thank you for the info!
I'll start reading up on how to shift without the clutch. But any basic direction/advice you can give?
 
  #24  
Old 05-12-2018, 12:48 AM
shadyside1983
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driving without clutch

I had a B81 Mack dump truck with a 20 speed quadraplex "crash box" transmission that had two sticks to shuffle all those gears around. If I had to kick that killer clutch twice for every shift I would have been unable to walk. You are a slave to the tachometer, if the engine speed is not right the thing is going to grind or not go into gear. Getting stuck out of gear while going down hill is exciting. The technique is when the necessity to change gears is perceived start to release the throttle. When the torque comes off the opposing . gears they will slide into neutral Then throttle the engine up or down as described above and the stick will slide into the next gear up or down. This is much easier than an automobile or small truck as you only n
eed one foot to drive it unless you come to a complete stop.
 
  #25  
Old 05-12-2018, 01:02 AM
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Addenda to post 24: Learning when to shift is important as if the rpm is not right the thing is going to grind regardless if you do or do not use the clutch pedal. This is easier to determine if the vehicle has a tachometer.
 
  #26  
Old 05-12-2018, 03:56 PM
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Originally Posted by 1972RedNeck View Post
If you have no synchro and want to shift with the clutch, you have to double clutch it.
Sorry for miss-info. and I thank you for the correction. Familiar with non-synchro trans and was under the impression the Clark medium and heavy duty 5 speeds are synchronized but if understand correctly can apply shifting 4th thru 5th and gearing can vary depends on whether O.D. or Standard??

Ole dog just leaned a new trick:
 
  #27  
Old 05-12-2018, 08:56 PM
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What you guys are talking about shifting with out the clutch a non-synchronized trany is called floating the gears, other wise you have to double clutch.
You should be able to Youtube floating gears to see how it's done.
Yes I do it for work on a 10 speed but also have used a 13 sp & 9 sp.
Dave ----
 
  #28  
Old 05-13-2018, 12:59 AM
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This video seems like a decent tutorial but I have never driven a big rig

 
  #29  
Old 05-13-2018, 04:08 AM
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Shadyside, first time I drove a B-61 with a 20 spd. when I was a kid I was grinding the crap out of the quad box and I mentioned it to one of the drivers and he said THINK "W" and walked away. Took me a day to figure it out.
 
 
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