Hydraulic Throw Out Bearing

Anyone ever used a hydrualic throw out for a GM V8/SM420 swap? If so how durable and what is the best kind to get. Obviously want a high quality one as dont really want to change very often. Also anyone have any part numbers I could use they have had success with?

I was thinking of ease of install and simplicity vs a bracket for a pull cylinder. Ideas/comments??

 

Although I haven't installed mine yet, I fullly expect this one to work well with my Buick V6. Novak has them for other engines, as well.

http://www.novak-adapt.com/catalog/kit_hcr3.htm

 

Are you talking about the type that's inside the bellhousing or external?

I have the Novak kit and it works well. I bought it years ago. Looks like Novak changed the 3/4" bore slave cylinder that came with the kit from when I bought the kit. The 3/4" bore slave cylinder (toyota) they use to supply had the fitting at the end. When the provided hose line is connected, the line was in the path or too close for comfort of the stock gm exhaust manifold. I had to buy an elbow to have the hose turn away from the exhaust. Looking at the picture in David's link, the new 3/4" bore slave cylinder's fitting is at the top, which is perfect. The slave bracket that I got flexed a little. It also looks like they changed the design on those.

 

actually I was just talking about the throw outs that have a hydualic line coming out of them just totally hydrualic throw out that is as simple as it gets. People are using them on thier stock cars and such but I'm not sure of reliability or how exactly to make it work

 

I understand that design in Wranglers is good and works well. However, to replace the unit requires dropping the transfer case and transmission. There is no way to perform any maintenance to it either.

 

ford has been using this setup since the 90's that i know of in their pickup trucks. true its a PITA if it goes bad, but the only ones i replaced were at clutch replacment time. so they must be pretty reliable

 

Do you think a pull cylinder would be a more simple solution or this route?

 

Wouldn't a hydraulic TOB have to go in place of the normal front bearing retainer on the trans? I'd think it would have to be made for the specific trans you're using. Sounds to me like Novak's kit might be simpler in the long run.

 

I went the hydraulic throwout route a number of years back. The first time it leaked and I had to pull the trans to fix it, it went to the scrap box-expensive scrap. Way better to use a standard hydraulic slave cylinder that takes about 15 minutes to replace. It also allows you to select the slave cylinder diameter to best match your linkage and master cylinder diameter.

 

:iagree: with Duffer.

Having dealt with those internal slave cylinders for years they are a PITA no matter how you look at them. They tend to leak after miles, are a pain to change, and especially in the case of the Ford units take a special tool to disconnect the line. And if you get air in the system they can be a serious pain to get bled. I'd stay external for ease of service.

 

I have a bracket that you might be able to use for a slave cylinder. Check it out at: http://s848.photobucket.com/home/protoko

It will work for you if you have a T-14 trans, model 18 transfer case, and no overdrive.