Allison MD3060

Just purchased a 1993 Gulfstream 39 with MD3060 in it. Had been sitting for over a year. Trans works great upshifting - but very hard downshifting at first in each gear. Now - after 1000 miles downshifts from 3rd to 2nd really hard. Input - thoughts - recommendations on helping this would be appreciated. You may e-mail be directly if you with to

Thanks to all.