1/2 ton -VS- 3/4 ton front axles ????

[chevypete396]

Hey all,

I need to replace the front end on the 68 which is a 3/4 ton .
The one on the truck now is an 8 lug - closed knuckle

I found a closed knuckle 1/2 ton front end from a 69 for a good price it even has the gearing I am looking for but its 6 lug.

The reason I need to replace the front end is the case has cracked and been welded.

Can anyone tell me the differences between the two units besides the number of lugs?

The main thing I need to know is can the 1/2 ton case work in my truck with my 8 lug wheels if I swap in the 3/4 ton axle shafts... Pete