Re: Transmission Modifications/replacement

Posted by Owen_Dyneto On 2013/3/7 18:20:21

Having an effective transmission cooler is critial as torque converters generate very large amounts of heat. The only automatic that I recall that came w/o a cooler was the very first GM Powerglides which were notorious for heat-related failures.

As to hot fluid coming out the filler tube, I think HH hit the nail on the head, it should have come out of the breather (unless it was clogged) as that is mounted lower. In any case if you do a little math with the coefficient of expansion of liquids like ATF, it had to have been overfilled as 12 quarts of liquid could never expand that much with the temperatures a transmission generates.