The Ford Barn

modelafish · 02-26-2020, 12:35 AM

I have a 70 C4 trans that I'm swapping into my 64 Comet along with a 66 6 bolt block. The Comet has a column shift, which I'm keeping; but the 66 was from a floor shift and shift linkage goes the other direction. Does anyone have specific knowledge if the linkage can be swapped between these two ? I know C4's didn't change that much over the years; but already there are differences in the trans mount, the vent tube, and the valve body. Hopefully before I tear it apart in an exercise in futility. I think I have the trans mount/vent tube figured out by swapping tailshafts, and drilling for a vent tube.

grumppyoldman · 02-26-2020, 01:07 AM

My C4 has a floor shift I dont know what brand it is for sure. I was told by one guy it was probably a Lokar, but that I don't know. Lokar, I believe can help you with the kit that will fit your trans. I think. Al

darrell · 02-26-2020, 06:03 AM

ive switched them before.there may be differences in some years.easy change.

KULTULZ · 02-26-2020, 10:08 AM

See Attached Photo -

https://www.allfordmustangs.com/foru...umn-shift.html

paul2748 · 02-26-2020, 09:07 PM

The C4 column shift cars have a lever that swings under the shifter shaft and the floor or console shift C4s have a lever that swings over the shifter shaft.

Some of the later C4's had the shifter both ways. I put one of those in my 56 Bird. The trans was a 1980 unit.

39deluxecp · 02-26-2020, 09:24 PM

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I am using a later c4 with the big input shaft. It has the upper and lower arms. I am also using a 1972 mustang shifter. Works very well

miker98038 · 02-26-2020, 09:41 PM

You'll probably get it done with minimal changes, but here's the link to the lokar column shift pages. Might be some ideas just in the illustrations.

https://www.lokar.com/auto-trans-access-parts.html

craig · 02-26-2020, 11:27 PM

Find an independent trans. shop that's been in business for a while. They can probably fix you up with the right shift shaft from something in their used parts supply. It shouldn't be that hard to find, there were more column shift cars than the floor shifters. I needed a floor shifter arm once and all I could find then were what you need

modelafish · 02-27-2020, 04:35 PM

Got 'er done yesterday. I just sat the two trannys side by side on a bench and pulled them apart one piece at a time. The biggest difference was one was longer than the other, so I made up the space with a couple of washers on the kickdown part. And it took about 10 tries to get the kickdown linkage inside the case to line up correctly.

02-26-2020, 12:35 AM	#1
modelafish Junior Member Join Date: Apr 2018 Location: Eye duh hoe Posts: 4	C4 linkage compatability I have a 70 C4 trans that I'm swapping into my 64 Comet along with a 66 6 bolt block. The Comet has a column shift, which I'm keeping; but the 66 was from a floor shift and shift linkage goes the other direction. Does anyone have specific knowledge if the linkage can be swapped between these two ? I know C4's didn't change that much over the years; but already there are differences in the trans mount, the vent tube, and the valve body. Hopefully before I tear it apart in an exercise in futility. I think I have the trans mount/vent tube figured out by swapping tailshafts, and drilling for a vent tube.

02-26-2020, 01:07 AM	#2
grumppyoldman Senior Member Join Date: Apr 2017 Location: Texas Gulf Coast Posts: 727	Re: C4 linkage compatability My C4 has a floor shift I dont know what brand it is for sure. I was told by one guy it was probably a Lokar, but that I don't know. Lokar, I believe can help you with the kit that will fit your trans. I think. Al

02-26-2020, 06:03 AM	#3
darrell Senior Member Join Date: Dec 2010 Location: p.e.i. Posts: 1,060	Re: C4 linkage compatability ive switched them before.there may be differences in some years.easy change.

02-26-2020, 09:07 PM	#5
paul2748 Senior Member Join Date: May 2010 Location: Midland Park, NJ Posts: 3,980	Re: C4 linkage compatability The C4 column shift cars have a lever that swings under the shifter shaft and the floor or console shift C4s have a lever that swings over the shifter shaft. Some of the later C4's had the shifter both ways. I put one of those in my 56 Bird. The trans was a 1980 unit. __________________ 48 Ford Conv 56 Tbird 54 Ford Victoria

02-26-2020, 09:24 PM	#6
39deluxecp Senior Member Join Date: Oct 2015 Location: s/w Iowa Posts: 111	Re: C4 linkage compatability Sponsored Links (Register now to hide all advertisements) I am using a later c4 with the big input shaft. It has the upper and lower arms. I am also using a 1972 mustang shifter. Works very well

02-26-2020, 09:41 PM	#7
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,397	Re: C4 linkage compatability You'll probably get it done with minimal changes, but here's the link to the lokar column shift pages. Might be some ideas just in the illustrations. https://www.lokar.com/auto-trans-access-parts.html

02-26-2020, 11:27 PM	#8
craig Senior Member Join Date: May 2010 Location: The Inland Empire of Washington State Posts: 368	Re: C4 linkage compatability Find an independent trans. shop that's been in business for a while. They can probably fix you up with the right shift shaft from something in their used parts supply. It shouldn't be that hard to find, there were more column shift cars than the floor shifters. I needed a floor shifter arm once and all I could find then were what you need

02-27-2020, 04:35 PM	#9
modelafish Junior Member Join Date: Apr 2018 Location: Eye duh hoe Posts: 4	Re: C4 linkage compatability Got 'er done yesterday. I just sat the two trannys side by side on a bench and pulled them apart one piece at a time. The biggest difference was one was longer than the other, so I made up the space with a couple of washers on the kickdown part. And it took about 10 tries to get the kickdown linkage inside the case to line up correctly.