1965 coronet drive shaft question

andyf · Mar 12, 2020

493 Mike said:
I see now! You need a drive shaft with a splined slip joint at the front, adapted to the correct u-joint. Should be no problem having a competent shop build one.
Mike

I don't think that will work. You can't have a u joint in the front and in the back with a spline in the middle. The driveshaft would flop around. Trucks use a bearing in the middle when they do it that way. The OP needs to source a different transmission.

Glenwood · Mar 12, 2020

The guy I bought my flange style 64sh 727 had a ujoint yoke bolted to the tail spline like in your pic. He used to race his cuda with it and fashioned a slip yoke two piece driveshaft to mate up to it. This is similar to the two piece driveshaft I had made for my 64, but it has a flat disc to attach to the transmission flange. I'll post a pic if I can find it.

JakeBorg66 · Mar 12, 2020

Fran Blacker said:
Your dealing with parts that aren't commonly used. Makes your project more difficult.

yeah it’s a little wonky, kind of out of my wheel house. I’m thinking I might be able to change the trans yoke for a stock flange style for the 3 speed and cut the original drive shaft and remake the slip side with a c body

JakeBorg66 · Mar 12, 2020

Glenwood said:
The guy I bought my flange style 64sh 727 had a ujoint yoke bolted to the tail spline like in your pic. He used to race his cuda with it and fashioned a slip yoke two piece driveshaft to mate up to it. This is similar to the two piece driveshaft I had made for my 64, but it has a flat disc to attach to the transmission flange. I'll post a pic if I can find it.

View attachment 921409 View attachment 921410

oh that’s really trick I’ll se what I can find. I have the stock flange style yoke from the 3 speed I’m wondering if I can make it work

JakeBorg66 · Mar 12, 2020

R/T Boy 67 said:
It is a slider. It is called a slip yoke in the picture. If it wasn't designed to slide it would be a lot shorter. I have seen these on truck driveshafts where they have to slide. As a side note I would not want 50 year old drive shaft parts on my 11 or 12 second car.

its not a slip yoke. It’s physically bolted into the trans. They were used on 64-65 and some 66 passenger cars with a 4speed

R/T Boy 67 · Mar 12, 2020

I was not talking about your trans yoke. I can see by the pictures it is bolted to the trans. I was talking about post #11. That is what I would use if it was mine.

R/T Boy 67 · Mar 12, 2020

The type on the top.

andyf · Mar 12, 2020

If the OP really wants to go down this path he should go visit a local shop that makes truck driveshafts and see what they say. The sliding type of driveshaft is usually only used on short driveshafts such as the front shaft on a four wheel drive. Sliding driveshafts that go to the rear usually have a support bearing. A driveshaft shop would be able to look it over and see if it will work. Even if it does work it will be a hack. That truck transmission might have a super low first gear in it and the shifter location could be wrong for the car too.

andyf · Mar 12, 2020

Here is what the original transmission out of my '65 Coronet 500 looks like. The shifter location appears to be about 12 inches forward of the picture that the OP posted.

64SF · Mar 12, 2020

The shifter location on the trans may create problems where it comes through the floor. I may be wrong but I don’t think that transmission will work in the 65.

I’ve done a 64 and 65 4 speed B body conversion using both a 66-69 883 slip yoke style and the 64-65 flange/ball and trunnions.

Other issues may be the transmission mount and cross member.

64SF · Mar 12, 2020

This is the set up for a 65 b body. Note shifter location.

wyrmrider · Mar 12, 2020

I may have an early non slip yoke 4 speed and 3 speed and bellhousings for Poly (3 speed donor) and 413 replacement

was to be a swap into a plymouth fury 2 door wagon (really long rear glass which I also have and tailgate glass)
car got stolen

Glenwood · Mar 12, 2020

wyrmrider said:
I may have an early non slip yoke 4 speed and 3 speed and bellhousings for Poly (3 speed donor) and 413 replacement

Love to find that bb setup around here. I plan to change the 64 to a stick when I find one.

JakeBorg66 · Mar 15, 2020

andyf said:
If the OP really wants to go down this path he should go visit a local shop that makes truck driveshafts and see what they say. The sliding type of driveshaft is usually only used on short driveshafts such as the front shaft on a four wheel drive. Sliding driveshafts that go to the rear usually have a support bearing. A driveshaft shop would be able to look it over and see if it will work. Even if it does work it will be a hack. That truck transmission might have a super low first gear in it and the shifter location could be wrong for the car too.

just slammed the engine in the car. Fits great after I cut the floor. I think the old drive shaft might work honestly. I just need to change the ujoint to a flange.

JakeBorg66 · Mar 15, 2020

Oh

64SF said:
This is the set up for a 65 b body. Note shifter location.

View attachment 921571 View attachment 921569 View attachment 921569

That’s interesting... I ran the number it came back as a 65. I wonder why they are different

JakeBorg66 · Mar 15, 2020

andyf said:
Here is what the original transmission out of my '65 Coronet 500 looks like. The shifter location appears to be about 12 inches forward of the picture that the OP posted.
View attachment 921535

That’s really interesting. I wonder what’s going on here. I ran the numbers it’s a 65 but maybe I should double check. Thank you for posting that

64SF · Mar 16, 2020

andyf's photo is the same transmission I'm using in the 65 B body (Satellite) I'm converting to a 4 speed. What are you doing for a transmission hump? Where did the shifter location end up after your installation? Can you post a picture?

JakeBorg66 · Mar 21, 2020

64SF said:
andyf's photo is the same transmission I'm using in the 65 B body (Satellite) I'm converting to a 4 speed. What are you doing for a transmission hump? Where did the shifter location end up after your installation? Can you post a picture?

I can. But I’m making it all myself. Classic industries sells a hump for $250 makes it real easy

LOUIS AMSLER · May 9, 2022

If you convert to a slip yoke front universal, you may got a slight annoying mystery vibration. Happened to a friend of mine and he finally sold the car. I got this straight from Herb McCandless. I am not nuts- he said some '62-65 cars had the engine installed crooked with the rear to the left. On my '64 I even bought a new rear mount, because you can see it. The trunion is a cv joint and overcomes this. Herb raced these cars and knows them very well.
,

493 Mike · May 9, 2022

LOUIS AMSLER said:
If you convert to a slip yoke front universal, you may got a slight annoying mystery vibration. Happened to a friend of mine and he finally sold the car. I got this straight from Herb McCandless. I am not nuts- he said some '62-65 cars had the engine installed crooked with the rear to the left. On my '64 I even bought a new rear mount, because you can see it. The trunion is a cv joint and overcomes this. Herb raced these cars and knows them very well.
,

Hi Lou,
I thought I would respond since I haven't seen you since 2016. Glenn stayed with me this fall and we talked a little about the Amsler boys! My 65 Belvedere is still not finished.
Mike

1965 coronet drive shaft question

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