ditching my blown w59 out for a w56 so I have my adapter to mate the w59 tranny to a geardrive tcase and im also going to swap out my mco7 for a mco7r10 so that is also for sale. the dual case adapter from marlin is about 5 years old now I think but it has barely been driven on in the last two years it is in 100% working order. The inchworm t case adapter is about 3 years old and works perfectly I just had it out last fall and it was all in perfect order and maybe has 8 hours of driving since then. it has lots of clocking options from -10 to 45 degrees for whatever setup you want.
I would like to get $250 for each of them in sonoma Ca. I can ship on your dime