clutch slave pushrod differences early / late (1 Viewer)

[hunde]

Hi all.

There have been far too many hurdles in changing the whole clutch system on my '85, hope this is the last...

As I'm learning, there is a change in the master / slave somewhere mid '85. My truck (build of 4/85) appears to be a early one AFAIK because:

The master is supposed to have the "pressed steel" fork that attaches to the clutch pedal, vs. the larger/ thicker copper colored one.

It would also appear that I have the wrong (late?) slave cylinder, because it came with the longer adjustable pushrod, which is far too long.

Here is a comparison between old (left) and new (right):



Can someone verify that i need an early slave cylinder? Are the pushrods interchangeable between the early / late? What is the correct length for the early one? If so, is this something i can source separately?

I have a call into man-a-fre where i bought it all from, just looking for some field experience on this...

Cheers

Tom

EDIT: Is it possible that the pushrod shown on the left was actually the longer adjustable style shown on the right, but cut-down to fit? It barely has a "mushroom" on it at all, and looks like it could have worn that way. I'm likely to believe that since there are several other cobbled together parts i have been correcting...

 

[Spike Strip]

Do you have the spacer between the trans and t'case ? If you don't, then you prolly take the earlier style.

Changeover was 4/85. My 5/85 has the non-adj pushrod for the slave.

 

[hunde]

Do you have the spacer between the trans and t'case ? If you don't, then you prolly take the earlier style.

Changeover was 4/85. My 5/85 has the non-adj pushrod for the slave.

Is the spacer about 3.5"? If so, then yes I do have it.

Is the non adjustable pushrod shorter than the 6" adjustable I pictured above?

I'm getting more confused...

 

[Spike Strip]

I believe the later pushrod is shorter as the slave is self-adjustable. But I can't tell you exactly as it's been a while since I've looked at either style.

If you have the spacer then you prolly need the later style slave. Could have come that way, could have been added later. Lot of things can happen to a truck in 25 years. Lot of odd things happen at the crossover point. You could have an old style Master and new style slave ?

I'm a little confused by your first post - "It would also appear that I have the wrong (late?) slave cylinder, because it came with the longer adjustable pushrod, which is far too long".

You mean you received the wrong slave from MAF or are you asking if you have the wrong one for the M/Y ?

 

[hunde]

Yeah, I don't think that everything is as it was from the factory, and since I'm unfamiliar with cruisers, i'm banging my head against the wall...

Sorry - I meant that I gave MAF my build date, and they sent me what they thought was correct, but it doesn't seem to be. No fault of theirs, it's all a bit screwy...

So yes, asking if I have the wrong one for the M/Y. Does having the spacer between trans and t case determine which style i should be using?

 

[Spike Strip]

Well, the spacer was part of the various mechanical changes done at 4/85, so I would say yes, you need the later style slave if you have the later style trans/t'case
combo... Now that I think about it, the early style had a large spring on the end of the throw-out bearing fork, attached to a hook on the slave housing, for return. The new style does not have that. That should tell ya.

 

[hunde]

Definitely no return spring on the fork, or at least there isn't now.

I'll try to get MAF to find the right part and take the other back.

Thanks for the help!

 

[Godwin]

Can you photograph the end of the clutch fork where the pushrod contacts?

 

[Dirtgypsy]

one on left (your original) is 85-87 variety

one one right (new from MAF) is 81-84

not interchangeable. hydraulic line fittings are different. 85-87 is inverted flare 81-84 is bubble flare.

clint

 

[hunde]

Can you photograph the end of the clutch fork where the pushrod contacts?

Here is a pic of the fork in it's correct orientation. Looks like the PN is 60058-2, but not 100% sure:

one on left (your original) is 85-87 variety

one one right (new from MAF) is 81-84

not interchangeable. hydraulic line fittings are different. 85-87 is inverted flare 81-84 is bubble flare.

clint

EDIT***Whoops - I totally misread that and looks like i need the LATER (shorter, non-adjustable type) to fit my "space"

The kit came with an inverted flare braided stainless line. I had to cut the hard hydraulic line and re-flare, because there was so much corrosion on the original union that it basically disintegrated. I'm gonna be really bummed if i have to cut and re-flare again it was a pain in the...

Thanks for all of your input, it's much appreciated