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Old 03-13-2019, 12:39 PM
Sunbeam Fanatic Sunbeam Fanatic is offline
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Join Date: Dec 19, 2009
Location: Nottinghamshire
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4 speed Column Change ????

Hi All,

I'm fitting a 4 speed transmission and I'd like to retain the column shift.

I'm sure I've read that a GM Van of some type has a compatible 4sp column shift, is that correct and if so which one do I need?

As an alternative is there any way to convert the OEM 3sp column change to 4sp?

Many thanks for any help.
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Old 03-13-2019, 02:29 PM
joe joe is offline
 
Join Date: Apr 28, 2000
Location: PNWet, USA
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Never heard of a US car/truck with a column mount 4 spd. Not saying they didn't exist but I'm 71 and never even heard of one. To get column linkage on a 4 spd it'll need to be a side loader trans not a top loader 4 spd. You really want a column shifter on a 4 spd? I had a 59 Fiat Sedan with that step up. What a sloppy mess. Waiting at a light never knew if you were in first or fourth till you let out the clutch.
To get a column 4 spd with the shifter on the left side(if they exist)I suspect your best bet would be in England, Oz or even Japan?
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Old 03-13-2019, 05:08 PM
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Cecil14 Cecil14 is offline
 
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Assuming you're referring to a 4 speed auto?

I would look for just about anything GM with a 700R4/4L60 and column shift. Our columns are just saginaw columns, more or less the same thing GM used with some slightly modified brackets.

Maybe a mid to late 80s van/truck/blazer/etc.?


aa
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Old 03-14-2019, 09:55 AM
joe joe is offline
 
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Quote:
Originally Posted by Cecil14
Assuming you're referring to a 4 speed auto?

I would look for just about anything GM with a 700R4/4L60 and column shift. Our columns are just saginaw columns, more or less the same thing GM used with some slightly modified brackets.

Maybe a mid to late 80s van/truck/blazer/etc.?


aa
Doh! Wasn't thinking AT's. If that's the case just get a GM column from the years your trans was used.
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Old 03-14-2019, 11:31 AM
Sunbeam Fanatic Sunbeam Fanatic is offline
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Quote:
Originally Posted by joe
Doh! Wasn't thinking AT's. If that's the case just get a GM column from the years your trans was used.

I'm in the UK so there aren't many lying around over here, I'll have to see if I can find one in the US and get it shipped!
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Old 03-14-2019, 11:58 AM
joe joe is offline
 
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Location: PNWet, USA
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Sunbeam, just a thought before you go to a bunch of work and expense.
I'm guessing you're going with a 4 spd AT swap for the OD gear prolly in hopes of better gas mileage???
If your 1980 has stock axle gearing 2.73 or optional 3.31's an OD gear will be useless. The AT will constantly be hunting and selecting 3rd gear cause 4th(OD) will drop the RPM's too low to maintain power sufficient to move the car. In OD you'll just have your foot farther into the throttle to maintain RPM and speed. Stock 2.73 axle gears are already really high. Adding an OD gear might be OK if you live on the hopefully flat Autobahn but for real world road use you won't gain a thing for the time and money spent on the swap.
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