Trans lines
 

What have you used for trans cooling lines? TH350 in '66

Re: Trans lines
 

It is a good idea to use metal lines as much as possible. Cooler lines are not under a lot of pressure so it is easy to make them yourself. Use flares going into the trans, and run the lines with some protection, as it will bleed out quick if you get a knick, and then you will be going no where. You can use flares into the radiator, but there is nothing wrong with a little hose as it also helps with vibration. If you are using a seperate cooler, make sure it is in a protected area, and that there is good air flow, you may even consider using an electric fan with it if you do alot of stop and go driving.

Re: Trans lines
 

The last time I had an automatic, I also used metal lines, from trans to radiator with no rubber hose. The only exception was when I once used an external cooler and had to use rubber to hook it up. If you incorporate multiple bends, or a loop in the hard line, it won't fracture. I suspended mine in the center of the run with a bracket near the oil pan.

I'd recommend nothing smaller than 3/8". If you're going to use an external cooler do not use one that has 5/16 tube fittings. I did that once and it created so much pressure in the transmission it ballooned the torque converter, which pushed forward on the crank and wiped out the engine block. It was an expensive learning experience.

If you do use rubber hose in the system, either keep it ahead of the fan/v-belt arc, or route the lines inside or against the frame so the possiblity of a broken belt won't rip the cooler line open.

Re: Trans lines
 

Thanks- looks like I will be "bending"

Re: Trans lines
 

Would 67 up lines work? I'll be needing a set for my 65 later and would like more of a "bolt in" if possible.

Re: Trans lines
 

Unless you feel bending is beyond your skills, or you dont have the time, I would buy the lines and bend them yourself and be dollars ahead of any kit. Price out lines at the local parts store is my suggestion....:thumbs:

Re: Trans lines
 

Well, I can bend lines. But my flaring tool is a POS. So I would have to add the cost of a new one in. Can anyone recommend a good flaring tool? I don't mind spending money on good tools.

Re: Trans lines
 

:lol:....mine too! The last time I did it I used all types of the available lines and used only the factory made ends and unions; bought out the stock of line and returned what I didnt need.:metal:

Re: Trans lines
 

I checked out the '67-72, but from what I have found, they are made up and down radiator inlet/outlet and I need the bottom ones. I have checked most of the regular auto stores and have not came up with anything yet.

Re: Trans lines
 

I ruined a set of new lines trying to bend them I ended up using braided line from summit its a bit costly but long enough to run along frame rails up to the cooler comes with press fittings works sweet and no leaks :metal:

Re: Trans lines
 

If you use rubber IIRC Gm makes quality line or buy hose rated for tranny lines.

Many after market coolers come with cheap hose, even some Big naMe ones.

I have had quality rubber hose on my car for 11 years and 200,000 miles with no problems for an aftermarket cooler.

David

Re: Trans lines
 

62 Bowtie. Where did you get the adapter fittings for the braided cooler lines?

Re: Trans lines
 

They come with the line kit from summit

Re: Trans lines
 

Went with the stainless lines from Original Parts Group: Mistake. Cheap Chinese knock-offs with incorrect TPI on the radiator end. Correct bends, but had to cut off the radiator ends and go with rubber hose, fittings and clamps.

Mac. :sumo: