10 bolt to 14 bolt swap questions

[HerpDerp1919]

I was messing around under my trucks as I'm getting ready to swap the 4L80 out of my K2500 into my K1500. I have the 14 bolt under my 2500 and the 10 under my 1500. Would I be able to swap the rear axle out of my 2500 into the 1500? I did some measuring and it looked like where the leafs mount up is the same distance on both axles. I read somewhere about moving spring perches. But both axles have two it looks like

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Shock mounts also measure up the same. So my next question is if this axle will work, would I be able to use the axle shafts off my 1500 to keep all four wheels six lug or could I use the knuckles up front from my 2500? I did some comparing and it doesn't appear that anything up front will swap over.
My main reason for all this is that maybe everything will agree when I do my 4L80 if I just swap over the whole drive line

 

[Jorge6.5]

The axle shafts are not interchangeable between rear ends

 

[HerpDerp1919]

Hmmm, What would be the best way to go about keeping all four 8 lug or 6 lug?

 

[Justin S]

Only thing you'd have to change in a direct swap is the u joint and the U bolts .

 

[HerpDerp1919]

Only thing you'd have to change in a direct swap is the u joint and the U bolts .

If I were to swap everything over from my 2500 to my 1500?

 

[Jorge6.5]

The entire rear would swap yes, but the front is not a direct bolt on

 

[HerpDerp1919]

As i've done more reading, the only way to get the front to an 8 lug would be to do a SAS. I guess i'll just have to keep my 10 bolt rear end in.

 

[Jorge6.5]

You could still at least find a 14 bolt semi floater rear with 9.5" ring gear. It's an upgrade over the 10 bolt and already come with 6 lugs.

Check your local salvage yard

 

[HerpDerp1919]

I'll keep that in mind. I have a full 2500 donor truck that im taking the 4L80 out of and I was going to try and snag everything I could out of it before I scrapped it.

 

[Jorge6.5]

Why not resurrect the 2500?