Clutch fork

[1971LC]

Gents, I have two forks/throwout bearings bushings. I am trying to figure out which configuration to use. I am swapping a 3 sp with a 4 sp. I have the correct bell housing and a new 4sp flywheel and clutch kit.
The fork/bushings are different.
Which should I use. The cast iron fork does not have clips to hold the TO bearing to the fork, but might not need them. The pic is below. What are some thoughts? I will swap the new bearing to the correct bushing.

 

[Augustiron]

It's my understanding the one on the right is 4 speed.
Yes, it uses clips.

 

[Pighead]

The cast fork is for the 4 speed.
There are clips for it...
also, make sure you have the correct pivot in the bellhousing (they're different) and the correct clutch slave pushrod (also different)

 

[3_puppies]

I prefer to say either 3 finger clutch or diaphragm clutch
as either can be used with a 3 or 4 speed
just everything needs to go along with each, pivot ball, fork, hub, flywheel, etc

 

[1971LC]

Thankx a lot guys. I’ll look for the clips.

Not for nothing but I just installed a diesel heater in my garage today. I have a 30x30 ft garage. Throws a lot of heat and the exhaust goes thru the wall via a 1” ss pipe. Winter here is usually in the 30’s.

 

[igotta40]

My February 1974 came with a 4 speed, 3 finger clutch and the fork on the left. As I understand it though, mine is a change over year model.

 

[1971LC]

Hopefully the last question on the subject. I will use the cast fork and 4sp set up but I am not sure the pivot ball to use.
Is it the short or long stem pivot ball. I have both.

 

[Augustiron]

Search is your friend

3 speed vs 4 speed clutch fork pivot ball identification | IH8MUD.com Forum | Toyota, Lexus & Off-Road Community Discussions 3 speed vs 4 speed clutch fork pivot ball identification - https://share.google/svbxqK6KjGlI8Rgtz

 

[73FJ40]

For the record, proof there are two different pivot balls, seen in the same room at the same time:

As reported by @65swb45, "Long one for the 3 finger; short one for the diaphragm."