727 transmission cooler?

Posted by Mathew Rattray On 2013/8/22 7:59:44

Hi Guys,

Well, I'm slowly getting there with the 55 Caribbean, After having the engine re-rebuilt and same with the gearbox, I am now experiencing an annoying problem... I am running the 727 torqueflite behind the 374cui Packard v8, I am running the OEM transmission cooler. After about 40-50 minutes of driving the gearbox began slipping and soon I had no direct drive, so I stopped the car and after about 10 minutes I wad able to drive the car a bit further before the same thing would happen. (Luckily I wasn't too far from home and was able to limp it home) Upon inspecting the oil It smelt and looked burnt. I have got new oil lines so I am guessing that maybe the original cooler isn't working or not well enough? :( I will be looking at possibly bypassing the original cooler and put an bigger aftermarket cooler on instead.

This is also a newly rebuilt gearbox - A bearing went in the torque converter (after 'supposably' being rebuilt less than 2000 miles ago) I was wondering has anyone experienced similar issues with the oil cooler or can provide any other suggestions?

I am sort of regretting installing the 727 conversion kit and not opting for the 700r4 conversion. At the time I had a Dodge Charger with a 727 and absolutely loved that gearbox...

Cheers,
Mat