quick Question about shortbox frames
 

Someone once told me that a 65 or 66 shortbox frame will work under a 71 body, except for having to change over to 5 lug, also i heard that a 73-80 crossmember will bolt right in as well, can someone please verify this, thanks.

yes, your right on the crossmember part , not sure about the other frame swap thing though, my 67 has an entire 85 front end on it

I am 66% positive that the frames are the same. Just make sure to ger a later one with coil springs...the earlier trucks in the 60 - 66 had torsion bars.

66%??? Make that 99% sure. ;)

i thought you did it 3 times and it only worked twice(2/3)