[volksworld]

plenty of threads here on the disc swaps.. .30+ yrs ago i swapped in the entire front xmember for the brakes so a little fuzzy in the details....re-used the early center link ,box and idler and had to come up with a mix of tie rod parts to adapt to the square body spindles....but for all i know all the square body stuff would have fit, the x member just didnt come with them....think i had to modify the lower shock mount on the arm so it lined up better... again check the threads cause there are other ways to do this without putting in the whole xmember....i was lucky as my 70 used the same length rear axles as the later ones, but i believe your 69 had shorter axles (provided it still actually has its original rear...a lot can happen in over 40 yrs....just measure between the backing plates.... if one truck is coil spring and the other leaf you'll have to weld on perches and shock mounts to swap rears