a little help on a possible 56"/63" spring swap please

[RockinChevy]

I've searched and searched through last night until everything turned into a blur...

Can anyone tell me how much to move the ORD shackle flip back to get 63" springs to fit? As for the 56" front springs, I have the DIY4X B52s and I still use the original hole in the frame for the rear shackle, correct? Also, do I have to drill new holes for the center pins? Pics and measurements would help. Trying to get some insight before I go diving into this project. Thanks!

edit: this is for another K5 I've bought from Dustin aka blazenwhip.

 

[natemc]

http://coloradok5.com/forums/showthread.php?t=267514
For the 63" move the front spring mount. Check out my build of the burban.
As for the 56" using B52 mounts don't know. I used the stock shackle hole but have a different front hanger

 

[Hogback Fabrication]

Is this on a Blazer? Do you want to keep the axle in the stock location or move it back?

As for swapping longer springs in the front, you want to set the front bolt position based on the axle position you want (i.e. if you want the front axle in the stock location or moved forward) and then you set the rear shackle mount based on the spring/use/arch etc to set shackle angle.

 

[RockinChevy]

Sorry for the late reply, been busy with everything going on. I think I'll just skip this project so it doesn't end up being abandoned on jackstands.

I already have the 52/56 springs in my blazer, I might or might not swap those onto the recently purchased Blazer then call it good.