Car sitting for 2 years and now tranny slips. what should i use to rehydrate the seals or what ever i need 2do

Question

66 chrysler has been sitting for a couple years. it runs fine but the tranny slips. is there anything i can use to maybe help tighten it up?

Answer 1

Other than topping the fluid off nope.

Answer 2

Drop the pan and change the tranny fluid and filter and put a bottle of Lucas transmission fix in it and then fill the tranny with regular fluid until full.