[Best window sealant, also roof protectant for gelcoat]

I have an '85 Sunrader. What would be the best window sealant? Also need to prep and seal top and sides of fiberglass. Same as on a boat?

[A43D automatic trans fluid change]

Thanks for the reply. As for the cooler - any recommendation on size or brand? Thinking about a mid size one which I see online for 60 to 80 bucks.

 

[A43D automatic trans fluid change]

Hi - I have a 1985 Sunrader which has 47 k on it (recently bought). Has auto trans. with od. I plan to put a transmission cooler on it and drain/refill it with Dexron 111. I assume it has Dexron 11 now. It works perfectly now but will be taken on a trip over the Cascades and Rockies soon and we want to be sure it runs cool enough (hardly ever use the od).  Any thoughts appreciated.