Stock radiator question

[Cherub]

What size fittings are the transmission cooler lines on the radiator?

[idrgbdy]

i used a 1/2" line wrench to remove the fittings when i removed my old radiator a couple days ago. would guess the line is 3/8"???

[red caddy]

Mine are 5/16" lines, 1/2" line wrench. Easiest way to hook up most trans coolers (3/8ths tubing) is to hit the local hardware store and pick up a 5/16"inverted flare" to 1/4" female pipe fitting (straight, 90* and 45* are availible) and a 1/4 pipe to 3/8ths hosebarb fitting. no cutting or flaring required. The lines stay stock and can be reconnected easily later, if you choose. RED

[Cherub]

Originally Posted by red caddy

Mine are 5/16" lines, 1/2" line wrench. Easiest way to hook up most trans coolers (3/8ths tubing) is to hit the local hardware store and pick up a 5/16"inverted flare" to 1/4" female pipe fitting (straight, 90* and 45* are availible) and a 1/4 pipe to 3/8ths hosebarb fitting. no cutting or flaring required. The lines stay stock and can be reconnected easily later, if you choose. RED

Cool, thats what i was looking for Red.

[Duro5341]

When you hook up a tranny cooler, do you hook into the top or bottom line in the radiator on the passenger side?

I was thinking of adding one soon

Duro

[gchemist]

The bottom line should be the return line. Both 350TH and 700R4 have the return line as the top fitting. The out/hot oil line is the lower fitting.

Route the tranny return oil line from the radiator to the external cooler.

[Duro5341]

Originally Posted by gchemist

The bottom line should be the return line. Both 350TH and 700R4 have the return line as the top fitting. The out/hot oil line is the lower fitting.

Route the tranny return oil line from the radiator to the external cooler.

not up here in Canada we do it backwards, otherwise this would over cool the tranny fluid in the winter, and cause shifting problems

We rount from tranny pressure line, to cooler, to radiator. This effectively will keep the tranny in proper temp and giving it added cooling efficency when needed

Duro