install dually bed

i have a 97 gmc dually wuz wondering if a 02 and up dually bed would fit thanks 4 your help

The 02 style trucks are physically wider than the 97 styles.

The only way to do it right would be to deskin the 02 bed and deskin the 97 bed. Then you could make some brackets/holes to bolt the plastic 02 bedsides onto the 97 bed box.

If the above works out for you then you have to deal with the bodylines being totally different from the different year trucks.