i have a 1984 dt50 and the guy i bought it from dropped the lower unit and didnt un hook the shift rod which pulled it loose inside the lower. does anyone have any info on how that is put together or can you direct me to the right publications which would have this information in it? secondly i have an opportunity to purchase a 1987 dt75 are the two parts interchangable between these two? any help would be greatly appreciated. thanks in advance for any assistance. and Hello from South Carolina!!!