Yes, you can swap the gears to the front. So you already have the shim kit, marking compound, fluid and gasket maker? Make sure you check out all the bearings and seals when you have it apart. I suppose if you're not going to run it long term you can tear down to inspect and then order parts instead of the normal "master install" approach. Don't forget the new crush sleeve and pinion nut.
Good to know! & It's currently on its way from Summit! I ended up getting the "basic" kit without the bearings. Just the shims and all of the other necessities. & This grandpa truck has never really been wheeled... 99.9% of its 125k miles have been on paved roads.. So im hoping the bearings look fine, but time will tell!