anesthes

What are you guys using for Hydraulic TOB on ZF6 these days?

Back in 2007 when I did my first ZF6 swap the Howe 82876 was a popular choice with a braided hose and conversion fitting.

In 2018 what are you guys using for Master cyl and hydraulic TOB for a ZF6 ?

I'm using a blue tag, so I know the collar is 1.311" vs the larger black tag (1.375")

I got the ZF6 out of another car as I'm swapping my 4L60E, and the hydraulics were junk and the dual mass flywheel has like 100k on it so I figure I'll just do another push style conversion since I need to buy all new stuff anyway.

Odd that a '92 had a blue tag..

-- Joe

Sleazy Rider

someone recently had a ram hydraulic bearing that they were selling here in the for sale section. he got it from summit and it was for a blue tag. back in the 90's i was using a mccloud twin disk clutch and their hydraulic bearing for a black tag zf.

USAsOnlyWay

I'm running the Howe with the stock master (86, not sure if zf masters have the same volume) with black tag zf6, but have to limit piston travel by a hair. I did this about 5 years ago, would be great to hear if there are newer (and oem) options out there- not that I've had a problem (but hardly drive it).

Mr6spd

I now have that New RAM hydraulic TOB listed in my car part out thread Part out thread w Blue Tag RAM TOB

anesthes

So what's the deal, works fine with the factory master? Does it require any spacers on the BH or is the distance within range?

-- Joe

dizwiz24

What are the advantages to this?

i seem to remember the ultra tough mcleod dual disk is operated by a hydraulic throwout bearing

but what if just for single disk? Why use this?
just curious !

anesthes

Well, I've always converted my T5's to a hydraulic TOB. I can ditch the slave cyl, fork, geometry issues, and use aftermarket steel bell housings without worrying about exhaust issues with the fork.

On the ZF6, I'd be able to use a standard single mass flywheel and sprung hub push style clutch.

-- Joe

dizwiz24

anesthes

I'm not a fan of the whole pull style clutch to begin with.

-- Joe

1993C4LT1

I like this, due to the fact that it eliminates the factory hydraulics. Does this make the clutch pedal more stiff?

anesthes

I typically do this on Fbody's and in each case no.

I started swapping things around this weekend. removed the 4L60E, and started taking apart the Dana36. Gonna get the Dana44 in this week, and then start the trans swap.

I just wanna make sure I order the right hydraulic TOB. I guess I'm going to have to do some measuring and figure it out. I know the distance in the ZF6 bell is more shallow than a traditional bell housing, so I might need a bearing with a smaller installation distance.

-- Joe

anesthes

Which howe did you use ?

Did you use any block spacers or anything ?

How did you limit the piston travel?

-- Joe