A Arm Question + Rear Axle Question

[TripleZ]

I was hesitant to post this because I know it has been discussed before. I do do a search and could not find it. I have a 77 1/2 ton 5 lug, will the A Arms in the 77 fit into my 67 1/2 ton 6 lug. Will they bolt in without modification. I have the Energy Suspension Kit for the 77, plus the rims I want to use are 5 lug.

I know the rear axles in the 67 are different from the 77, if I decide to replace the axles to convert to 5 lug does any one have opinions on where to buy new axles, I heard the Dutchman makes a good axles at a decent price.

Sorry if this is a re-post.

ZZZ