Based on the totality of this thread, I will have someone rebuild the existing 904.
What upgrades or reliable tricks do you recommend and why?
What specific parts or kits do you recommend and why?
Thanks again to you all for the assist!
Even for your application I will vouch for what Cudafact said in his previous post. Use the thinner clutches to add more clutches,
Particularly in the front drum as this is a shifting clutch that wears.
More clutches there will add durability. Also on this same clutch drum, I would add the multi spring pack. It will give better shift timing or improved overlap. A wider 2nd gear band will add durability as well. I have used these thinner clutches in my diesel truck and have 25,000 miles on them with no ill effects.
