There was one question that wasnt answered, how much PSI is in the transmission lines? I was thinking of getting this one if it will actually fit, its rated at 150 PSI and 250 degrees F. http://www.oreillyauto.com/site/c/d...&keyword=transmission+line&pt=C0073&ppt=C0338
That's the way mine is, steel up to the aftermarket cooler, short rubber to cooler. Been running it that way for three years now, no leaks. My 87 E 350 motor home has the short rubber line to the cooler in the radiator like the pic of the early Falcon/Mustang. Looks factory to me, both ends are flared or barbed, with the rubber in between. So I guess it was only on certain models they used all steel?
Yes, they should have both fuel hose and transmission hose in stock. They both look the same, but they're labeled different from each other. It sould be printed on the hose what application it's for. Fuel hose will leak in using it for a transmission cooler line.
I can see where the flexible ends could be better than having solid connection ends. The same reason we have a flexible fuel line between the fuel line and fuel pump. It absorbs vibration and torque movement. I’m not saying the solid connections for transmission cooler lines are wrong…just saying why they had flexible ends. I have seen newer cars/trucks with rubber ends on an external cooler.
I agree 100% with using steel as i've already had a bad runin with rubber that exploded and tranny fluid went all over my street. As soon as I get the correct rubber lines Im running it to the tranny shop for some steel lines!
Steel line acts as part of the cooler - releasing heat to the air. Rubber lines hold the heat in so you lose about half of your cooling. The hose used for trans coolers is rated at 250PSI and 200C or some such. The cooler return line feeds the rear lubrication circuit so pressures can peak to over 75 psi.
Are you saying 1"or 2" of rubber hose between the steel line and radiator will contain that much heat?
No, I'm saying that replacing the entire steel line with rubber or braided hose will lose that much cooling.
if you use just plain rubber line it will swell and leak ,if you use rubber line use it for a transmission it is different and will not swell ,it is best to use steel ,way more worry free and will last forever
Yeah, lesson learned! I used regular vacuum line I plan to go with steel once I get my tranmission hose to make it to the shop for some new lines.
Just another option I suppose. The Right Stuff Detailing is prebent to EXACT factory specifications. Not sure if it makes a difference...but I doubt a transmission shop will pay attention to details like that.
If you need rubber line for a trans cooler line don't skimp, get Gates LOL hose or Goodyear Instagrip. Both hoses are made for oil and both the inner tube and the outer jacket are good for oil exposure. We sell thousands of feet of the Instagrip every year for this and powersteering return line with no complaints.
