Several 69 Suburban chassis questions...

[**grumpy**]

Hi all.
I just bought a pretty solid 2wd 69 Suburban.

The PO already swapped 72 spindles and disc brakes, and had the rearend redrilled to 5x5 pattern to match front.

first off...

I should be able to swap to drop spindles without any trouble right? Just buy for 71-72?

It already has drop springs all around, but I plan to bag it soon. So...

Will I have to alter the 2pc. driveshaft once it's bagged?
I had a 59 Nomad wagon with bags, and kept eating carrier-bearings until I had a slip-yoke installed. Will I need that here too?

I want to add 2" lowering blocks and a 4" bolt-in notch. Will the slam bag bottom out before the axle hits in the notch?

And I think I wanna change the rearend. It was the original 6-lug, redrilled as I mentioned, but it seems very gear-bound. I was told many of the stock 72 rearends had 308 gears.
My burb seems to be screaming at 65mph on the highway, with a fairly stock 350/350 combo.

I know I'm forgetting something, but I've rambled enough for now.

Oh yeah, anyone have bagged burb pics? I looked at some on the burb sub-forum, but not too many there.

Thanks all.