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04-21-2024, 10:16 AM | #1 |
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Spacers on shift rail to prevent breaking shift forks in Model A transmission
Tina "Model T" Shinn's video today features Steve Mitchell from Mitchell Manufacturing (the outfit who makes the really nice overdrive units for Model As) talking about how he now uses spacers on the shift rail to prevent over-shifting past the detents, to help prevent damage when shifting aggressively.
https://youtu.be/hZKEG5LjTgs?feature=shared&t=1206 That link takes you to the 20 minute mark where Steve talks about it and demonstrates how his idea works. What do you think of that idea? Brilliant? I cannot see any flaws in that logic, can you? I'm planning on installing the spacers in one of my transmission towers and experimenting. I think it's brilliant.
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04-21-2024, 10:37 AM | #2 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
I bet he knows where everything is on that work bench.
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04-21-2024, 12:04 PM | #3 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
I went to Steve and Cindi’s shop in Colusa a couple of weeks ago when I picked up my overdrive. Lots of stuff in very limited space, but there is in fact order to the madness, and yes, he knows precisely where everything is.
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04-21-2024, 12:28 PM | #4 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
It makes sense for a racecar like he was talking about in the beginning. But, how often are you really banging through the gears racing down the road in your Model A?
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04-21-2024, 12:50 PM | #5 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Have you ever taught someone to drive manual in your Model A? Have you ever had your spouse drive your Model A?
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04-21-2024, 01:06 PM | #6 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
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04-21-2024, 01:22 PM | #7 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Good insurance.
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04-21-2024, 05:05 PM | #8 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Just don't see the need for this, but if it makes you feel better go for it. The wife and all three daughters can drive the A's. When they learned they were taught to let it go into gear when it's ready and not to force it
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04-21-2024, 07:00 PM | #9 | |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Quote:
My experience driving the car is the transmission forces you to slow down your shifts. If you try to bang gears, all it's going to do is grind. |
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04-21-2024, 11:28 PM | #10 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
I could of used this when I was learning to drive my first model a and mistreated it. Refines the Mitchell syncromesh transmission that steve manufactures. Good on Steve.
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04-21-2024, 11:33 PM | #11 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Is breaking a shift fork realy an issue? I have never heard this before. Bending yes, but breaking?
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04-22-2024, 12:49 AM | #12 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
I have forks that are bent.
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04-22-2024, 01:25 AM | #13 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
In a perfect world, that is all that would happen. If I can save a $3,000 transmission with 30 cents worth of spacers, I'm doing it.
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04-22-2024, 09:00 AM | #14 | |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Quote:
Not sure what $3000 transmission you are referring to, the Mitchell I received in January was only $2150, plus tax and shipping, delivered to my door.
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04-22-2024, 09:28 AM | #15 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
He is considering installing them in every sync trans shift tower.
I just threw a number out there. I don't know if the spacers cost 30 cents either. That statement was not fake news fact checked for to-the-cent accuracy.
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04-22-2024, 11:12 AM | #16 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
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04-22-2024, 11:18 AM | #17 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
I saw that $3000 price and thought "Wow the price really has gone up". I hope that doesn't make people think twice about buying one.
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04-22-2024, 10:35 PM | #18 |
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Re: Spacers on shift rail to prevent breaking shift forks in Model A transmission
Good idea,
We have used spacers on the V-8 transmissions for years to limit the travel of the 2-3 rail to prevent over running the synchronizer assembly. Chris W. |
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