this is actually the main battery to chasis ground! *******

ripped out my engine ground base. first i snapped off the head and then i went under, removed the liner, and while i was trying to turn it the thing just fully snapped off. funny enough, with the base off i still cant remove the screw.

 

There was a thread two days ago about the g100 ground. There were some ideas in it about moving it around. Maybe on the second page by now. Check it out

And I realize that was the thread that you replied to. I was trying to be helpful this time instead of an *** like then.

 

Same thing happened to me.
With the big hole there I was able to nut from behind.
I might have drilled a new hole in the same area.
Can't remember so I would have to go look.
Know those metric and standard ignition wrenches Craftsmen includes in their wrench sets to up the count?
Well they do have a use. LOL.

 

That stud is rough. If the threads are still useable, clean it up and tack it back on. Or use one of the bolts just to the right as a ground. Make sure you have bare metal contact. Or drill a hole close to where it was and use a bolt and nut along with some washers. You want bare metal so sand the paint. Stick a washer on the bolt and put it thru the hole from the backside. More contact using washers. Grab another washer for the other side and put the cable on the bolt. Thread a nut onto the bolt. Add a lock washer if you like. Use that huge hole to stick a wrench back there and tighten it up.

Whichever is easiest for you.

 

i have it soaking in some rust penetration oil since last night. when i get back home im planning on trying to remove the snapped screw from off the weld nut, if so, i will use it but if not i will go with what you've suggested which is a great idea to run the bolt from the back side and the nut from the front. i know you say to drill a new hole but is it possible to just used the awkward square hole that already exist?

 

put a new stud in near by using a drill to make a hole for a bolt and nuts, use two nuts for securing, locking them together. leave enough threads exposed for your terminals and the final 3rd nut. of course bare metal for contact. use some dielectric grease to keep the rust at bay on the bare metal and also on the terminals and hardware.

That original stud is not going to make good ground contact. Your new stud will.

Have Fun Fixing the Jeep!