90 f150 vs 90 f250
 

so i have a 90 f150 reg cab short box 4x4, and a 1990 f250 ext cab long box 7.3 5 gear 4x4, i want the diesel in the reg cab short box both trucks have 5 gears so the pedals are there, how much work is it to make the f250 front end fit under the truck or will the coils and i beam take the weight??
also what difference is the springs in the back from one truck to another im not sure??
if i do this i ust need to know these things also will the half ton frame take the weight of a diesel??
any help muchly appreciated
thanks guys

i don't know for sure but i would bet that you would need to change front ends or find some heavy coils for it cause the 90's 7.3L are heavy. i think they weigh around 1100 lbs the garage said. If the frame is in good shape i think it would be structurally fit, but i reinforce it just to be on the safe side.