Warborg
Proven Member
- 41
- 0
- May 20, 2014
-
Sacramento,
California
Still fairly new to the DSM scene so trying to learn all the ins and outs... For the GS/420a is the correct transmission model the 41TE (A604)? It's just a DD and likely will never see a turbo, I just want to maximize what it has in it and try to keep it up and as reliable as possible... With that being said, would there be a point to rebuilding the valve body with a shift kit, and what is the recommended ATF for it? Lastly, has anyone actually added an external transmission cooler to one of these? I figured it'd be beneficial for longevity and I've heard some A/Ts behave a bit better with more efficient cooling...