Plugging A/T lines on replacement TJ radiator???

The rubber boots work.

You can just go get a threaded plug for the holes too. I 'think' they are standard pipe threads.

Mike

parts supplier. Stupid!

transmission lines to, but I have a 5-spd. (OEM doesn't have those fittings/openings.)

good way to block off those A/T fittings? Repl didn't come with any plugs, other than rubber boots that fit over each of the fittings.

Why bother, just leave them alone as they are not open to the radiator coolant.

You might consider using them for a power steering cooler though..

There is no need to do anything. The transmission cooler is sealed from the radiator tank, and nothing will leak out of those fittings. Just hook up the radiator, fill with coolant, and proceed as normal.

Earle

online parts supplier. Stupid!

transmission lines to, but I have a 5-spd. (OEM doesn't have those fittings/openings.)

recommend a good way to block off those A/T fittings? Repl didn't come with any plugs, other than rubber boots that fit over each of the fittings.

I believe that PS operates at a higher pressure than AT. I am not sure that the radiator AT cooler could take it. If he wants to find out let us know...

Earle

You would, of course, cool the return line which operates at atmospheric.

The high pressure side operates in the area of 1500-1800 psi and requires special high pressure hoses with tapered fittings.

The low pressure side uses standard oil resistant hose and has only a simple spring clamp to prevent it from falling off.

The low side is bigger around than the radiator tank ATF cooler though. Now what you are contemplating is a restriction more than it is a cooler.

Earle

Long as you use the return side pressure wouldn't be an issue, but actually it's going to heat the fluid up more than it cools it down. I'd just put a couple of plugs in there and be done with it.

Hi John

I just bought a new rad and installed it. By default, most parts suppliers sell you an AT rad. When you install it, just leave the plugs in place in case you have a major problem and need to use your current vehicle for parts on an AT Jeep.

The AT rad is fine for manual transmission. You did not make a stupid mistake.

Merrill

parts supplier. Stupid!

transmission lines to, but I have a 5-spd. (OEM doesn't have those fittings/openings.)

good way to block off those A/T fittings? Repl didn't come with any plugs, other than rubber boots that fit over each of the fittings.

Aftermarket rads are sold to accomodate AT by default. There is no difference except the plugs and a tiny line inside the rad. Leave the plugs and be done with it. If you are sweating keeping them sealed, apply a small amount of glue or gasket sealer to the plug and put it back on. You did not make a mistake.

Carl

parts supplier. Stupid!

transmission lines to, but I have a 5-spd. (OEM doesn't have those fittings/openings.)

good way to block off those A/T fittings? Repl didn't come with any plugs, other than rubber boots that fit over each of the fittings.