Some one was telling me that i couldnt use the rubber hose and barb fittings to install my trans cooler because the preasure in the 4l60s is just too high and it will blow the lines off. Is this true or was this person just full of it.

thanks in advance
Jon

 

They are full of it. You are talking about the hose for the cooler right? Mine is there with hoses.

 

You'll have no problems as long as you use the proper size fittings, hose, and clamps.

 

I think most people use the rubber hose that come with b&m coller, Ive never had a problem with mine !

 

thanks alot guys, Also did yall bypass the radiator??

THanks
Jon

 

I used the hose with the B&M Supercooler, or Hi-Tek Cooler whichever it is, no issues. I did not bypass the cooler, but I probably will when I move to Arizona this summer.

 

I used some Aeroquip high temp engine hose, rated @ 450*F and 1000 psi. The pressure running through those lines is not much, but the volume of fluid is a lot, so don't go smaller than 3/8" (5/16" is the absolute mininum size). I would stick with the radiator unless you are going to install 2 - 24,000 lb coolers.

 

Rubber hose here, maybe 10Kmiles on it now.

 

I had some of the nylon braided rubber hose and used the push lock brass fittings. I stuck a small hose clamp on there, too. (better safe than sorry) I think it's rated at 300psi. No problems after a year or so.

 

The rubber hose supplied with most coolers is high pressure hose and works fine. Although every cooler I've seen comes with the cheapest hose clamps. I would go and get a solid band style or fuel injection style clamp. I've never had one fail yet.

 

rubber hose and clamps will do the job but I went with steel braided hose and AN fittings just for the piece of mind.

 

What do you guys do with the sections of factory rubber hose when you connect your coolers using the higher quality hoses?

 

I see this is an old post but none the less...

I'D NOT USE THE BARBED FITTINGS FOR TRANS COOLER HOOKUP.

They likely WON'T break off, but if they DO the consequences are catastrophic, like a blown transmission if you don't catch it quickly enough.

Use Fuel fittings and connections. When they are connected you KNOW they are a secure fitting. Those barbed fittings are cheap junk. Search YouTube you'll see people who blew their transmissions when they THOUGHT the barbed fitting was secure but it wasn't.

AN6 fittings are probably slickest way to do it. Otherwise, flare aluminium hose and use hose nuts.

My kit came w/ those junk barbed fittings and I put them where they belonged. In the garbage. Last thing you want to do is save $30 using them only to blow your transmission.

Rubber hose is fine otherwise so long as it's rated for enough pressure. I don't think there's more than 100PSI in the cooling lines (don't quote me), if you get hose rated for several hundred PSI you'll certainly be fine. Also make sure the hose isn't rubbing on anything, or it'll eventually break.

 

Going to lock this one down as it's from 2006.

FWIW, I've had barbed fittings and (good quality, trans fluid specific) rubber cooler lines on my '98 for nearly 20 years now. No failures, no issues. I use fuel injection clamps though, as recommended by FLT above. If the hose is the correct size (e.g. don't use 11/32" when it's supposed to be 5/16") for the barbed fitting AND good clamps are used, there shouldn't be any issues.

But that doesn't mean that it's wrong to do it another way. More than one method will work here, and be reliable over the long term.