91 s10 will it lay rocker on 20

i just bougt 20in rims off a 4wd blazer they stuck out on it b/c it was 4wd now my truck is only frame right now with no front end the truck is bodydrop to the rocker will i be able to lay rocker still the 20,s i no i got plenty of room on the fire wall but not sure about the booster the rims are 20 by 8.5 but with the tire on it meassure 10 inch wide 255 35 20 please help or send pic of s10 bd on 20 my year