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Automatic transmission

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leecarr View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote leecarr Quote  Post ReplyReply Direct Link To This Post Topic: Automatic transmission
    Posted: 28 Feb. 2017 at 7:33pm
Having just broke my knee cap and possibly facing the third surgery on my clutch knee got me thinking. Has anyone ever put an AT in an otherwise stock CJ2A ?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rocnroll Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 7:46pm
If you go Pinto power it's not difficult but would probably be somewhat expensive for the whole engine/tranny/adapter setup.

Can also be done with GM parts too but would probably cost roughly the same.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe Friday Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 7:47pm
If you're staying with the L head, I think there might have been a 2 speed automatic made by BW that was in some mail trucks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Unkamonkey Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 7:52pm
It's certainly possible but the rear drive shaft length can become a problem for the U joint angles.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 48willys Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:13pm
I would talk to Novak, they say on the web site the TH350 can be adapted to fit in a short wheel base jeep. Don't know about adapting the L134 to the TH350 though.https://www.novak-adapt.com/catalog/adapters/transmission-to-transfer-case/th350-to/kit-103/
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cjbilly Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:18pm
Since I have two prosthetic legs, I'm looking at several different opinions regarding the clutch set-up.

1. Have someone else drive while I ride shotgun. Having my own DD. (if I need them or not) Beer
2. Start out in either 2nd or 3rd gear. Wink
3. Come up with some sort of electric/hand operated clutch apparatus that anyone could use. Still toying with the idea. Haven't spent alot of time on this yet. Thumbs Up
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rocnroll Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:20pm
Originally posted by Joe Friday Joe Friday wrote:

If you're staying with the L head, I think there might have been a 2 speed automatic made by BW that was in some mail trucks.



But all those were 2wd.......or were they?   (all those I've seen were)



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Post Options Post Options   Thanks (0) Thanks(0)   Quote 48willys Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:29pm
Wonder if you could find a solenoid that's big enough to push or pull the clutch linkage, then just have a button on the shifter.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cjbilly Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:38pm
Originally posted by 48willys 48willys wrote:

Wonder if you could find a solenoid that's big enough to push or pull the clutch linkage, then just have a button on the shifter.


Thought about adding another tab on the cross shaft connected to a solenoid that would do that same basic function.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bob3b Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:40pm
How would you feather a clutch with a solenoid? I like the hand clutch idea.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe Friday Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 8:46pm
Oops. Chad is right. The automatics were 2WD.

a hydraulic clutch with a solenoid sounds doable.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 48willys Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 9:00pm
Originally posted by Bob3b Bob3b wrote:

How would you feather a clutch with a solenoid? I like the hand clutch idea.
It would be a problem, maybe some way to vary the voltage would give you the ability to feather it, sort of like the old slot car controllers. The hand clutch would probably be much easier and cheaper to build , use a heavy cable and have the whole thing so it just bolts on.
My brother had a better idea, use a HYD Master cyl from a motorcycle on the shifter, and bolt a slave on the bell housing.

Edited by 48willys - 28 Feb. 2017 at 9:08pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe Friday Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 9:26pm
Ok, scratch the solenoid and use a linear transformer and a screw drive...
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cjbilly Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 9:54pm
Originally posted by Joe Friday Joe Friday wrote:

Oops. Chad is right. The automatics were 2WD.

a hydraulic clutch with a solenoid sounds doable.



Hydraulic slave cylinder for a start.
Sorry leecarr, didn't mean to hijack your thread. I felt that we are both in the similar situation with our clutch legs.



Edited by cjbilly - 28 Feb. 2017 at 9:57pm
1984 CJ7
1946 CJ2A- Supersonic motor
1948 CJ2A- Ramsey DP-1 shifter,PTO,front Ramsey MX200-R winch, Newgren lift
1955 Sears Trailer
1955 CJ5- PTO/belt drive,farm weight
1954 CJ3B- trencher,front blade
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Stev View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stev Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 10:01pm
Leecarr,

I will first declare that I have never done this but here is an idea:

My Series 3 Land Rover has a clutch pedal that drives a hydraulic clutch slave cylinder it pushes back the throw-out bearing yoke to work the clutch.  I have seen modern Jeepers add a bicycle hand brake to move their throttle.   Perhaps you could mount a bike hand brake on your shiftier and have it attached to a hydraulic clutch slave cylinder to operate the clutch.

It could work like this.  Left hand on the wheel always.  Right hand on the shifter.  Depress the clutch by squeezing the bike hand brake  mounted on the shifter, then put the shifter into first gear.  Right foot on the skinny pedal to get the rpms up.  Let the clutch out slowly by releasing the bike hand brake slowly.  Repeat going into second and third.

You may need to design some kind of a reducer to get the leverage to drive the clutch slave cylinder.

Let us know which way you are going.  

Be Safe Out There.

Stev
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rocnroll Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 11:37pm
Originally posted by Unkamonkey Unkamonkey wrote:

It's certainly possible but the rear drive shaft length can become a problem for the U joint angles.



Pinto with a C4 hooked to the Dana 18 has the stock driveshaft angle. Big smile


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Post Options Post Options   Thanks (0) Thanks(0)   Quote leecarr Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb. 2017 at 11:58pm
Lots of great ideas, I'm just doing a little forward thinking. I don't want to go through all this work and have to sit in the passenger seat while my kids drive around, plus there is a lot of people more deserving than me that I'm sure could use it too. I never had the guts to try a foot clutch/hand shift motorcycle. I was thinking about a conventional AT like the pinto so there would be no learning curve and anyone could drive it. Does anyone know if the c4 has a removable bell housing.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 64CJ5 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar. 2017 at 12:35am
In the book "Civilian Jeep Model CJ-3A"  by Bob Westerman on page 88 12/20/51 Evaluation of an M-38 equipped with an Allison automatic transmission began at Aberdeen Proving Grounds.
The automatic was also tried in M38-A1 Jeeps until 1955.
No other information is included on these automatic equipped Jeeps.
Nothing is impossible.
This would be an interesting project to see running the trails. 


Edited by 64CJ5 - 01 Mar. 2017 at 5:07am
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