Thanks for the tips guys...yeah no local yards around me even have any zr2 axles....drudging craigslist for a part out maybe. Will keep my eyes open. I should have gotten on this over the summer..but life keeps moving.

 

I can't remember if you've done it or not, but now would be a good time for the bravada shaft and tube as well. I want to try and find one before I put the iron diff into the blazer.

 

Fair enough. I think I'd rather fresh gears, just me tho. I'm not that mechanically inclines, so either way it's going to my buddies shop.

Good to find out I can just swap the gears out and the cv shafts are still good to use.

 

from what i gather with the front i just need the diff...and i keep my axle tubes?
good point on bravada swap....forgot about that.

 

There's only the one tube on the pass side.

If you're keeping the axle disconnect, I'm sure you'd get the diff and tube all together, in which case I'd just swap the whole thing. Less hassle IMO. But if you are able to get just the diff, then yes you can swap your tube over to the new diff.

If you're going to switch to the bravada shaft then you would switch out the tube for the bravada one.

 

Me too! Neither are ZR2 mind you...

 

Would the zr2 cv shafts fit on a normal s-series
Front diff or would I have to do a whole axle swap? And
Since the shafts are longer would I have to get the upper
And lower A-arms off a zr2 also?

 

You can't use ZR2 CV shafts on a normal Blazer. It's not the control arms that make it wider, it's the frame. The frame is shaped differently on the ZR2's and the mounting points for the control arms are lower and are extended further out from the center line of the Blazer.