Do they make a finned aluminum tranny pan with a drain plug for our cars? I am interested in one for a 1999 LTZ with a 3.8. I don't know what the tranny is. I assume it's a 4T65E or a 4T60E tranny?

Corndog

There may be a finned pan available, but a larger transmission oil cooler would be more effective.

There may be a finned pan available, but a larger transmission oil cooler would be more effective.

Thanks! I know there are aftermarket coolers, but has anyone seen a factory tranny cooler on a Lumina? Maybe it was a police option. I do have a question on installing a drain plug. If anyone has done this, where did you put it? Side, bottom, gotta photo?

Thanks!

Corndog