I have a 81 toyota for parts and am looking at taking the front axle and puting it under a 86 due to emmissions laws I can't put the fuelie motor and computer in the 81. I can't get the link to the pictures to work. I'm assuming you just measure the distance between t-case and axle yolks on the 81 and place the axle under the 86 and drill holes for spring shackles and reiforce the frame where the holes are. i think the frames are the same otherwise