Re: 3 on the tree
some of the vendors sell a revised gear indicator for doing an overdrive swap, otherwise i wouldn't even bother if just going to a turbo 350. manual trans already has no slip whereas an auto would need a lockup converter to get true 1:1 in third gear. plus you need all the other bits and a good radiator to handle the extra heat that an auto puts off, yadda yadda yadda...
my 72 burb has the 3 on the tree and i plan to keep it. i'm swapping to a 4.10 third member and have a 406sbc to go in. i like the nostalgia of this trans. i did put in a 4 row radiator to handle that bigger engine and for trailer towing duties and without an auto or a/c to put extra demand on cooling it will be an awesome setup. i eventually plan to upgrade my saginaw to a factory overdrive unit. i do have a spare 700r4 in good working shape (still hooked up to that 406) but i don't want to join the pack. the big engine under the hood with column shifted manual will really throw people a loop!
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