3 spd shift linkages??

['69 Gmc]

I’m in search of 3 speed on the column linkages to the trans 1970 with 307 and I’m pretty sure 7 bolt side cover saginaw. Can anyone tell if these are the links I need? Thanks
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[NewBayColony]

You need to know for sure if it is a seven bolt. They are different from the four bolt.
I'm actually looking for the same parts for a four bolt M18/19 to complete my overdrive conversion.

[weim55]

I have a pair of those for that application at the house. Unfortunately I'll be away for a couple weeks before I can take a look and post some pictures. If no one else post them first I'll get back with you as soon as I can.

Steve weim55 Colorado

[special-K]

I have a bunch of those linkage arms but I don't know what is what myself. I believe the only difference is 6cyl vs V8 and which transmission. I am thinking the 6cyl arms will be the longer ones, since the transmission sits farther back in an inline-6. I also have a 3spd transmission or two. I'd have to look to see which one. If someone could measure theirs it would help us all.

[NewBayColony]

I just tried to get a measurement on the linkage arms on my 72 c20 with a 292. I couldn't get an accurate one. What I could get is the measurement from the bellhousing to the center of the holes in the shift levers on the transmission.

On the seven bolt, when both levers are in neutral, the center of the hole in the 2nd/3rd lever is less than an inch. Also the shift arm that connects to this lever has a "J" curve at the end as it hooks around the clutch boot. The 1st/2nd lever is 6 1/2 inches from the bell housing.

On the four bolt, the center of the holes on the levers are 2 1/2 and 3 1/2 inches from the bellhousing.



If the weather warms up next week. I can take them off and measure them better.

The pictures are to show what that "J" curve looks like.

Also, I'm looking for the arms for the 4 bolt

[NewBayColony]

Originally Posted by '69 Gmc

I’m in search of 3 speed on the column linkages to the trans 1970 with 307 and I’m pretty sure 7 bolt side cover saginaw. Can anyone tell if these are the links I need? Thanks
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Looking at the EBay picture now, I think these are 4 bolt arms as neither has the "J" hook.

[NewBayColony]

Originally Posted by '69 Gmc

I’m in search of 3 speed on the column linkages to the trans 1970 with 307 and I’m pretty sure 7 bolt side cover saginaw. Can anyone tell if these are the links I need? Thanks
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69 GMC, did you ever find the linkage you were looking for? I'm gonna start looking for a set for my m18/m19 4 bolt sidecover trans now and I was wondering if you had any success.

[NewBayColony]

Better Picture of both linkage ends at transmission. (7 Bolt)

['69 Gmc]

Originally Posted by NewBayColony

69 GMC, did you ever find the linkage you were looking for? I'm gonna start looking for a set for my m18/m19 4 bolt sidecover trans now and I was wondering if you had any success.

Don’t know how I just seen this. No luck yet. I’ve accumulated 8 rods (4sets) and none work together to shift correctly.

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['69 Gmc]

This is my side cover. Btw.. what’s the thing sticking down off the 2/3 linkage hole?
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['69 Gmc]

I found a set a guy here close to me had. I seen them still on the truck. V8, and 7 bolt side cover trans. I got them and got home and they dont work for mine. Too long. They look like the ones that you posted. Even got the small linkage ends with the different indexed holes for at the transmission. I started to think maybe the 307 was supposed to be in the rear motor mount holes, but that can’t be because the bellhousing mount wouldn’t line up at the crossmember. I’m stuck and don’t know where to go from here??
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['69 Gmc]

This is the last set I got that I just knew was gonna work
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[weim55]

Originally Posted by '69 Gmc

I found a set a guy here close to me had. I seen them still on the truck. V8, and 7 bolt side cover trans. I got them and got home and they dont work for mine. Too long. They look like the ones that you posted. Even got the small linkage ends with the different indexed holes for at the transmission. I started to think maybe the 307 was supposed to be in the rear motor mount holes, but that can’t be because the bellhousing mount wouldn’t line up at the crossmember. I’m stuck and don’t know where to go from here??
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Sounds like the truck you purchased the linkage from was likely an original six cylinder truck that was converted to a V-8. The V8 linkage will be shorter in an original application as the engine and transmission are farther forward.

Steve weim55 Colorado

[NewBayColony]

Originally Posted by '69 Gmc

This is my side cover. Btw.. what’s the thing sticking down off the 2/3 linkage hole?
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That's the transmission switch for Transmission Controlled Spark explained here: http://67-72chevytrucks.com/vboard/s...d.php?t=627794 and here: http://67-72chevytrucks.com/vboard/s...d.php?t=196397
Do a search in the above "Search" box to find even more links explaining it.

[special-K]

I can get mine out and take pictures for comparison

[NewBayColony]

I still am looking for set from a 67/68 with a light duty Muncie 4 bolt side cover. I might have to make a set.

[weim55]

Originally Posted by NewBayColony

I still am looking for set from a 67/68 with a light duty Muncie 4 bolt side cover. I might have to make a set.

GM produced the four bolt Muncie through the end of the 65 model year. For 66 and later the seven bolt all synchro Saginaw 3speed became the standard unit for light trucks and passenger cars. Maybe a good chance if you find The linkage rod's from a '64 or '65 C series pick up these might work (??)

Steve weim55 Colorado

[NewBayColony]

Originally Posted by weim55

GM produced the four bolt Muncie through the end of the 65 model year. For 66 and later the seven bolt all synchro Saginaw 3speed became the standard unit for light trucks and passenger cars. Maybe a good chance if you find The linkage rod's from a '64 or '65 C series pick up these might work (??)

Steve weim55 Colorado

That's what I thought but I read where they were produced up to 68 in the trucks. I thought they were all synchro by then.

['69 Gmc]

Originally Posted by special-K

I can get mine out and take pictures for comparison

Thanks. A couple pics pics under hood still on the truck may help. This last 1st/reverse link I got off a set up like mine hits the clutch linkage when I try it.
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[special-K]

The linkage rods I have are loose, not in a truck. I have an assortment. Just let me know if a picture of them all together will help. i should just get a picture anyway and post it. If I have every variation it may help clarify

['69 Gmc]

Originally Posted by special-K

The linkage rods I have are loose, not in a truck. I have an assortment. Just let me know if a picture of them all together will help. i should just get a picture anyway and post it. If I have every variation it may help clarify

Pics may help. For me It’s hard to tell what’ll work without trying it on the truck. They guy that has the truck I got the ones off of had about a dozen loose ones. Just didn’t know what I was looking for. I bought one set off eBay for our trucks of unknown origin. They don’t seem to be 6 cyl ones because they aren’t long compared to others, but neither rod fits either location on my truck. Are the small ears the rods go to at the trans all the same? One short one for 2/3 and a longer one for 1/R indexed differently? I’ll attach a picture of the ebay ones I bought. Anybody have an idea what they fit?
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[special-K]

I'm in the same boat with my collection. I figure if and when I need them I can try till something works. Still, maybe I have some that are different from what you've had and just seeing them might tell a story. I'll get them out before I head out this morning.

[special-K]

Here is what I have and I have no idea what is what. If anyone recognizes any, please identify so we can reference against those. The first and second picture shows all and it looks like only two identical pairs at the bottom. The very lowest one is slightly different from the pair it is under, only at the lower end bend. You can tell better on the second picture. The third picture has only the ones that are different... it's minus the two that matched another. They are all lined up at the lower ends to give an idea of length differences

[weim55]

I definitely have a pair off the truck from an original 67 327 three speed. I'll be reusing mine but maybe my example can help ID the correct one from special K. I won't be able to take some pics until hopefully this weekend.

Steve weim55 Colorado

['69 Gmc]

Originally Posted by weim55

I definitely have a pair off the truck from an original 67 327 three speed. I'll be reusing mine but maybe my example can help ID the correct one from special K. I won't be able to take some pics until hopefully this weekend.

Steve weim55 Colorado

Is your 67 3spd a 7bolt?
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