So, I'm due for a transmission fluid replacement and was wondering if I should take advantage of it being open to make any mods that y'all think are worthy. This is my primary vehicle and the most important things to me in a mod are better performace/reliability, economy, cost, and comfort, in that order. What is your opinion on various transmission mods and how much should I expect to pay to get a decent tech to install them while they're already changing the fluid and filters?
Dan
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2005 Silver CRD Limited

245/75R16 GoodYear Duratracs
Fumoto drain | ProVent CCV Filter
Stanadyne FM100 filter | Cummins fuel pump
GDE Eco | SEGR | BoulderBars | FrankenLift | Frankenskids