Trunion and ball

-
F

Frank Dinatally

Well-Known Member
Joined
Nov 2, 2019
Messages
177
Reaction score
65
Location
Pennsylvania
I have a 65 barracuda automatic with ball and trunion. What valve body would Interchange with it? Also it possible the trunion to be making like a rattle noise? Only when getting and off the gas. Also always thanks in advance for any help
Frank
 
I believe that valve body is specific to those early shift cable type transmissions. @Charrlie_S can tell us for sure, I bet. But yes, the trunnion joint can make all kinda noises. Rattles, squeaks and even a big crashing noise when the car flips over after the front of the drive shaft falls out and digs into the road. lol
 
Frank Dinatally said:
I have a 65 barracuda automatic with ball and trunion. What valve body would Interchange with it? Also it possible the trunion to be making like a rattle noise? Only when getting and off the gas. Also always thanks in advance for any help
Frank
Click to expand...
65 Valiant/Barracuda is a one year only 904 trans. The valve body does not directly interchange with any other year. However, SOME 64 valve bodies can be modified to work in the 65 trans. All 65 valve bodies can be made to work in the 60-64 trans
 
Charrlie_S said:
65 Valiant/Barracuda is a one year only 904 trans. The valve body does not directly interchange with any other year. However, SOME 64 valve bodies can be modified to work in the 65 trans. All 65 valve bodies can be made to work in the 60-64 trans
Click to expand...
Thanks, Charlie. I knew you would know. Do you still have that 65 904 you came and got from me in Macon years ago?
 
Frank Dinatally said:
I have a 65 barracuda automatic with ball and trunion. What valve body would Interchange with it? Also it possible the trunion to be making like a rattle noise? Only when getting and off the gas. Also always thanks in advance for any help
Frank
Click to expand...

The ball and trunnion has sets of needle bearings in there (the ball part) might allow for some play if they are worn. Double check the torque and play on those I would think. They have rebuild kits but you have to be very careful with the pin etc, to keep proper balance.

Anyone else have thoughts here?
 
One way to "test" the B&T is to remove the coupling flange at the trans. Put 2 or 3 flat washers on each stud, and reinstall the shaft. If that cures or reduces the problem, your joint is bad. Don't leave it that way. This is just to test the joint. If the boot is ripped, and the grease is gone, the joint is shot.
 
And I don't know if Charlie_S has done this, but I chose to NOT remove the pin when I did the rebuild tore it all down and found a good video showing how to snake the boot on without damage. Replaced the balls and needle bearings as well.
 
WV64Signet said:
And I don't know if Charlie_S has done this, but I chose to NOT remove the pin when I did the rebuild tore it all down and found a good video showing how to snake the boot on without damage. Replaced the balls and needle bearings as well.
Click to expand...
SSHH don't tell anyone, but I have never replaced the pin. Many years ago, BC (before chevy), I did my first B&T. I could not get the old pin to budge with a 30 ton press. The pin was visibly good, so left it alone. That's what I have done on all of them.
 
Charrlie_S said:
SSHH don't tell anyone, but I have never replaced the pin. Many years ago, BC (before chevy), I did my first B&T. I could not get the old pin to budge with a 30 ton press. The pin was visibly good, so left it alone. That's what I have done on all of them.
Click to expand...
:lol:

I don't feel so bad now
 
WV64Signet said:
Worked pretty slick

Click to expand...

Looks like more trouble than it's worth plus you might gouge a hole in the boot. I had mine on in half the time using my fingers and a half width dulled down paint stick. Lickedy split.
 
When you take the end "shoes" off the pin, there may be a number of selective shim washers each side, keep track of where they go. Thats how the trunion is centered.
The pin may not be centered, thats where the shims come in.

P.S.
They ran Ball and Trunion behind Max Wedges too
Good luck
 
Last edited:
Inertia said:
P.S.

They ran Ball and Trunion behind Max Wedges too
Click to expand...
And 64 Race Hemis. And 383 dual quad stock eliminator champions. And everything with 392 Hemis. And on and on.
 
Frank Dinatally said:
I have a 65 barracuda automatic with ball and trunion. What valve body would Interchange with it? Also it possible the trunion to be making like a rattle noise? Only when getting and off the gas. Also always thanks in advance for any help
Frank
Click to expand...
Do u want a factory vb for it or a different year to work so u don’t have to use a cable? Kim
 
Frank Dinatally said:
I would love to get rid of the cables and trunion
Click to expand...
You can use a 1966 or 1967 trans. Must be for your engine V-8 or Slant Six. Then you will need a non cable shifter, and different drive shaft. Also 1966 speedo cable. You cannot use a 1968 or newer trans unless you get a special torque converter, or have the later crank in the engine with the larger converter pilot hole (or have your crank modified)
 
WV64Signet said:
The ball and trunnion has sets of needle bearings in there (the ball part) might allow for some play if they are worn. Double check the torque and play on those I would think. They have rebuild kits but you have to be very careful with the pin etc, to keep proper balance.

Anyone else have thoughts here?
Click to expand...
Yes they are tricky to rebuild! I am glad I did my 64 V200 and will need to do my 64 Base model V8 swap. BTW I found a 65 V8 904 and switched out the valve body to work with my push button shifter.
 
David Boyd said:
Yes they are tricky to rebuild! I am glad I did my 64 V200 and will need to do my 64 Base model V8 swap. BTW I found a 65 V8 904 and switched out the valve body to work with my push button shifter.
Click to expand...

I loved my reverse manual shift valve body in my pushbutton '62, my mother swore I learned the piano in that thing.
 
Inertia said:
I loved my reverse manual shift valve body in my pushbutton '62, my mother swore I learned the piano in that thing.
Click to expand...
My 66 Barracuda had a 65 trans, a 64 reverse manual valve body, and a push button shifter in a homemade console between the bucket seats. That was a lot easier shifting than reaching up to the dash with my left hand.
 
You must log in or register to reply here.
-

Back
Top