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02-25-2019, 04:51 PM | #21 |
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Location: Southern Upstate New York
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Re: F150 trans or 39 Ford trans for banger?
JT1930; I did the F150 in my CCPU myself. Looks like you know what it takes to do the machining, so that makes the F150 a better choice then the 39 trans because of the OD. Go with the F150 and you won't be sorry. Cost for that conversion when you DIY is very reasonable. Good luck..
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02-25-2019, 06:45 PM | #22 | |
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Re: F150 trans or 39 Ford trans for banger?
Quote:
Thanks Al ! I was going to use a model AA bellhousing but didn’t feel like fabbing up the shaft for the pedals. Getting the cast bellhousing from macs speed shop with the throw out bearing kit and the rear plate to mount the ujoint clam shell. That should get me going fairly quick. |
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02-25-2019, 06:54 PM | #23 |
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Re: F150 trans or 39 Ford trans for banger?
Does Mac's offer any guidance as to how much the shorten the driveshaft, radius rods and torque tube when using their bell housing and adapter plate? The reason for the question is I have a friend in our Model A club that's been thinking about doing the F150 conversion. I said I would fabricate the rear adapter plate for him. Mac's plate would be a much easier build.
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02-25-2019, 07:30 PM | #24 | |
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Location: Glocester, Rhode Island
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Re: F150 trans or 39 Ford trans for banger?
Quote:
Not sure. But I’ll be finding out soon. I know it is a 5/8” plate that bolts directly to the rear of the trans and then you directly bolt the clam to it. When I get it set up I’ll shoot you some measurements of what I’ve got. |
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02-26-2019, 07:45 PM | #25 |
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Location: Camarillo, CA and Pine Grove, CA
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Re: F150 trans or 39 Ford trans for banger?
This from Dave about his transmissions,
Complete bolt in kit, no cutting of your car, rebuilt transmission,u joint ,t.o. bearing. Chrome shift lever, clutch disc, bell housing petal and emg brake mounts, gaskets , driveshaft. Torque tube, radius rods, (these have been shortened and are exchange items) $3800.00+ shipping . thanks
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? |
02-26-2019, 09:21 PM | #26 |
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Re: F150 trans or 39 Ford trans for banger?
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All that said, I have a car with the Mitchell O/D and their synchro gearbox. I use a cable shifter on it as Daveymac29 mentioned. I figure that is about as close to a T5 as I will ever get. My other As have the standerd gearbox and the Mitchell O/D. A standard driveline is too slow these days, IMO.
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02-27-2019, 09:19 AM | #27 | |
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Location: Glocester, Rhode Island
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Re: F150 trans or 39 Ford trans for banger?
Quote:
You sold me at the chrome shifter..... 3800 bucks is nice for someone who wants to plug n play on their car. I like to fab and do it cheaper and then have an appreciation of what I’ve done. But that’s just me. |
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02-27-2019, 02:07 PM | #28 |
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Re: F150 trans or 39 Ford trans for banger?
Some of us have those skills. Those of us who don't pay the piper!
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Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club |
02-27-2019, 10:53 PM | #29 | |
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Re: F150 trans or 39 Ford trans for banger?
Quote:
The MACs bellhousing makes the conversion relatively simple with the original pedals mounted left or right sides and the hand brake simply mounted as per the attached photograph. I have opted for an open prop shaft, but I believe that MACs has a conversion kit for the torque tube. The clutch is the one minor hiccup and once again MACs can supply a suitable unit, or a clutch from a turbo charged 4 cylinder Mustang will do (not the current model) Last edited by wensum; 02-28-2019 at 02:41 PM. |
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02-27-2019, 11:23 PM | #30 | |
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Re: F150 trans or 39 Ford trans for banger?
Quote:
To answer your question, the f150 will go faster because of the overdrive, IF, you have enough horsepower to pull the higher gear. (4th) There is one thing you should know that has NOT been mentioned and that is the gear ratios in the f150 are very poor. Much worse than the stock A transmission. BIG rpm drop between 2nd and 3rd. Super annoying if you drive in hill country much. |
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02-28-2019, 10:24 AM | #31 |
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Re: F150 trans or 39 Ford trans for banger?
Pete there is not much difference between the F150 trans ratios and the Model A 3 speed.
F150 Model A 3.25 3.12 1.92 1.85 1.00 1.00 .78
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02-28-2019, 06:08 PM | #32 | |
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Re: F150 trans or 39 Ford trans for banger?
Quote:
I noticed also that you moved the accerator pedal over to the right.
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03-01-2019, 07:25 AM | #33 |
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Location: Phoenix AZ/Bath UK
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Re: F150 trans or 39 Ford trans for banger?
Another alternative is a close ratio gear set in the original transmission
Belchers in the UK offer two sets:- 18T/29T 1st = 2.592 - 1 2nd = 1.543 - 1 Top 1-1 Total ratio 1.61-1 or 20T/27T 1st = 2.173-1 2nd = 1.293-1 Top 1-1 Total ratio 2.609-1 Price is £785 which is just over $1k right now, plus shipping etc Solves the problem of the big jump between 2nd and top. No synchro or o/d but no cutting or altered appearance. Price is enough, but got to be cheaper than an adapter and a good used/rebuilt 39 or F150 trans. I don't have a set (yet) but have passengered in a car with them fitted and it makes a hell of a difference to drivability. All positive feedback so far as I am aware. |
03-01-2019, 12:39 PM | #34 |
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Join Date: Feb 2019
Location: Glocester, Rhode Island
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Re: F150 trans or 39 Ford trans for banger?
Wensum looking good. I bet with the torque tube adapter it would be minimal if any cutting of the cross member but for me I don’t care. This car is not a stocker.
Also the stock A trans and f150 trans are very close like stated above. With having a Winfield 6.1 head and other mods it should power through the gears fine. |
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