Hydraulic TO Bearings

Route666 · Dec 2, 2004

I was going to post in the other thread, but though better of it.

I used McLeod's online form to ask them about something, but since they're not going to respond to that I thought I best ask you nice people.

If I use a shortened input shaft tremec tko with a toploader bellhousing connected to a 302, would I use the toploader throwout since the bellhousing is shorter or use one for the TKO or could you not do it with a TO bearing?

The 10 and 26 spline TKO are different diametres and are also both different to the 10 spline toploader.

I assume I wouldn't be able to use toploader one on the TKO because it is a different size shaft? - Would the TKO one be too long because it is in a shorter bellhousing?

TOPLOADER 1-3/8X10
TREMEC TKO 1-1/16X10 & 1-1/8X26

D.Hearne · Dec 2, 2004

The difference in the shaft on the TKO and Toploaders is only the length. The daimeter is the same--- 1 1/16 inches. So the same T/O bearing will work for either. Only if you use a std length TKO, you'll need the spacer sleeve in addition to the adjuster nut and the bearing. I made the mistake of ordering the bearing, but you have to also order the adjuster nut, they don't come together ( or maybe now they do , I bought mine three years ago, they didn't then) I also bought the spacer sleeve, but with the Toploader's shorter input, it wasn't needed. I still have it in case I ever do go with a Tremec, I'll probably have to order another, I'm sure it'll be MIA if and when I need it

Route666 · Dec 2, 2004

Thanks D.Hearne, the McLeod site says the toploader is a 1-3/8 10 spline whereas the 10 spline TKO is 1-1/16. You say they're both the same, but but but their specs say otherwise.

Or is there some toploader with a thicker input shaft that's putting my reckonings off?

I'd rather use the TKO one, as I know that would fit with the TKO, but if can't be adjusted short enough then it won't work with the bell.

On a semi-related note: Would the TKO fit better in a 69 with the shorter toploader housing? Do you think there would be trouble with the box's crossmember not fitting if it is more forward?

I hear you about things not being there when needed. It seems it's always getting in your way until you need to use it then you can't find it lol.

gp001 · Dec 2, 2004

First off, the McLeod "Contact Form" doesn't work. They never get the e-mails.
Here are McLeods contact info:
Tech hours M-F 10-12 & 1-3 Pacific Time
Phone (714) 630-3668

There are 2 types of McLeod hyd TO bearings; bolt on and slip on.
The bolt on ones are self adjusting. You must take measurements to get the right piston length. You only find this out AFTER buying the bearing and reading the instructions. While this wasn't much of a problem for me (they are local to me), I imagine it would be a big PITA for you in Australia.
The slip on ones have the adjusting sleeve and spacer sleeves.
I only have experience with the bolt on version. If you would like to see the TO bearing instructions let me know and I will scan them and post. That way if you decide to go with the bolt on version you can take the measurements before you order.

gp001 · Dec 2, 2004

Route666 said:
Thanks D.Hearne, the McLeod site says the toploader is a 1-3/8 10 spline whereas the 10 spline TKO is 1-1/16. You say they're both the same, but but but their specs say otherwise.

Or is there some toploader with a thicker input shaft that's putting my reckonings off?

I'd rather use the TKO one, as I know that would fit with the TKO, but if can't be adjusted short enough then it won't work with the bell.

On a semi-related note: Would the TKO fit better in a 69 with the shorter toploader housing? Do you think there would be trouble with the box's crossmember not fitting if it is more forward?

I hear you about things not being there when needed. It seems it's always getting in your way until you need to use it then you can't find it lol.

In my 2004 McLeod catalog they list the following:
3 & 4 speed, Ford & Top Loader 1 1/16x10
4 Speed Top Loader 9rock Crusher) & G-Force 1 3/8x10

nosaj122081 · Dec 2, 2004

gp001 said:
First off, the McLeod "Contact Form" doesn't work. They never get the e-mails.
Here are McLeods contact info:
Tech hours M-F 10-12 & 1-3 Pacific Time
Phone (714) 630-3668

There are 2 types of McLeod hyd TO bearings; bolt on and slip on.
The bolt on ones are self adjusting. You must take measurements to get the right piston length. You only find this out AFTER buying the bearing and reading the instructions. While this wasn't much of a problem for me (they are local to me), I imagine it would be a big PITA for you in Australia.
The slip on ones have the adjusting sleeve and spacer sleeves.
I only have experience with the bolt on version. If you would like to see the TO bearing instructions let me know and I will scan them and post. That way if you decide to go with the bolt on version you can take the measurements before you order.

I'm glad you brought this up, I was confused about it. So what you're saying is for the bolt on one to work, you have to measure, but you really need to have the bearing to do it? I really am clueless with these hydros.

Route666 · Dec 2, 2004

Ok that clears it up then. It was the rock crusher and gforce listing that I had, I didn't notice the other one. DOH!!

Yeh I was going for the bolt-on one.

Looks like a TKO500 with a shortened 10 spline input shaft will go beautifully with the toploader TO bearing and toploader bell.

Thanks gp!

Oh, using the shorter bellhousing wouldn't interfere with TKO conversion mount would it?

gp001 · Dec 2, 2004

nosaj122081 said:
I'm glad you brought this up, I was confused about it. So what you're saying is for the bolt on one to work, you have to measure, but you really need to have the bearing to do it? I really am clueless with these hydros.

You need to make 2 measurements so that the bearing is properly setup. However, you could get away with only 1 measurement and ordering direct from McLeod. The first measurement is from the face (tranny side) of the bellhousing down to the fingers of the clutch. The second is from the face of the transmission to the top of the bearing. You subtract the second measurement from the first and you need between .100 and .300 so that the bearing can adjust. If you take the first measurement you can have them send you the right bearing (actually the right piston size).

Here is a scan of the McLeod install page
www.2mfffabshop.com/misc/hydto3.jpg

Route666 · Dec 3, 2004

Thanks for those instructions gp, I forgot to ask for them.

gp001 · Dec 3, 2004

Route666 said:
Thanks for those instructions gp, I forgot to ask for them.

D.Hearne · Dec 3, 2004

If you're going with a TKO, then I'd strongly suggest you use an external slave cylinder. They're both easier to adjust and fix than the McCleod T/O bearing is. A lot cheaper in purchase price too. The difference in length on the bellhousings your talking about is 1 inch. There were 2 basic versions of the Toploaders-- small block ( 28 spline output/ 1-1/16" x 10 spline input) and the big block ( 31 spline output/ 1-3/8" x 10 spline input) There are many variations amung these 2 versions, but all used one or the other input/output shafts

Route666 · Dec 3, 2004

I'll keep that in mind for when the time comes. Thanks!

EDIT: Well I'll research it and keep it on electronic paper until the time comes anyway.

Hydraulic TO Bearings

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