Just the springs but my bolts are still in good shape so I'm trying to keep them if possible

 

Don't... you will spend way too long trying to save them than it's worth. Cut the bolt through the rear leaf eye and be done in all of 30 seconds.

 

Hahah alright I'm just gonna cut it thanks for your help!

 

One last question where can I get the replacement hardware? I'm having no luck at any autoparts stores

 

You won't find those bolts there. Either the dealership or a hardware store like Fastenal, McMaster-Carr, or a specialty joint.

M14 class 12.9 is mostly used in automotive applications so don't be surprised if you get some funny looks.

 

Alright thank you so much! You wouldn't happen to have the size for the front would you?

 

No problem. All three are the same.

 

sorry to bring this back but do you have any ideas or suggestions on how to get the front leaf bolt out i have it loose and cut the leaf off so there is no pressure on the bolt but it is still not coming out.. im losing hope lol anything is helpful at this point

 

How far are you making it with the bolt? Is it not turning past a certain point or is it spinning loosely?

 

Air hammer will get it easy

 

Or completely **** the mounting box and bust off the welded nut inside the frame...

 

Ok, I just ran outside and took a look, it's not quite the same as my S10 where the bolts run clear through the frame, I see what yer talkin about now. Very similar to the upper mounts on the rear shocks, which I was able to drill through the welded nuts and just use new hardware. Stupid design for maintenance. If your bolt is completely fukkered I'm not sure of any other way to get to it other than notching the inside of the frame so you have access, but then the brake lines are in the way and they'd have to be moved to. Big job in the making....that sucks for sure.

 

Very likely the case that the weld nut broke off. Mine broke off on one side- on the other side even with a solid treatment of lube and heat, that nut broke as well.

Rather than moving brake lines drilling holes in the unirails to fit a socket in, I used a dremel with a cutting wheel and cut a hole in the spring mounting "box" just big enough to fit a flat wrench in (Was a 23mm if I recall).
I was able to loosen off the nut and remove the bolt after cutting the leaf eye off with an angle grinder, cutting the rubber bushing off with a sawzall, and cutting/prying the seized metal bushing off of the bolt.

 

The flange head it out about 3/4 of an inch and its spins with a wrench but I can't hand turn it

 

It may possibly be stuck in the metal sleve inside the rubber bushing. If you have it loose and turns with a wrench, it would seem that the threads are not making it past that sleve. With a larger cut-off wheel you may be able to cut the bolt next the the leaf spring on both sides, get it out of the way, and then get the rest of the bolt out. I would start with that before I would start butchering the spring mount.