Can any one give me the frame width (outside) from 1980 thru 89 F 250 and F350 4x4's, I have a 77 f150 4x4 and need to know if these newer trucks have a different width frame rail spacing.Thanks in advance,Al

 

Ajb, I am not 100% positive but I beleive that the frame rail spacing is the same. I have never measured them but over the course of time I have seen several trucks with swapped out beds or front end components from 70's to 80's models and vice/versa. I have even read a thread on this forum somewhere where a person put a 55' f-100 body on a 83' f-350 frame. Good luck

Jakegypsum // Ford fleet, soup to nuts

 

AJB, my 86 f250 4x4 measures 36" from outside to outside of the frame directly under the transmission hope this helps don't know if it changes farther forward or towards the rear but that is at the transmission. John

 

The front spring centers on my '90 F-250 is 36 1/2".