Body Mount Replacement (Liquid Wrench Locations )

[posulli]

So my body mounts need to be replaced on my 05 LJ. The LJ only has 38k miles on it but I think it sitting for a lot of its life in California deteriorated the body mounts. There is no rust on this jeep at all except for the body mount bolts haha. I have heard the horror stories of snapping bolts and want to do everything I can do to avoid that. I found this post on the YJ forums of drilling really small holes in the body to get Liquid Wrench onto the top of the threads.

https://www.jeepforum.com/forum/f12/body-mount-bolt-locations-bl-detailed-write-up-w-pix-705291/
Anyone done this on our TJ's? Do you have photos of where you drilled? I have the the replacement mounts and time so I want to be patient and spray these bolts for at least a week.

 

[Fonz54]

I did not drill any holes. My Jeep was from Colorado originally. Had some rust but not too bad. I sprayed each of the bolts with Kroil every other day for about three weeks before doing a 1.25" body lift. I sprayed at the bolt head and where I could stick the little red tube in holes in the frame and doused Kroil toward the top of the bolt and nutsert. I started out giving each bolt a little snug turn and then applied a little loosening turn. Then back to tighten and a little loosening. Kept doing this and got a little more extraction each time until they came out. The minute I felt any resistance I sprayed more Kroil and retightened and then slowly kept working them loose. I replaced the stock pucks and bushings when I did the BL. Majority of the rust was on the top end of the original bolts. All new bolts got a healthy dose of anti-seize.

 

[Goatman]

Try using an impact on a low setting and see if they back out. Might need a bit of foward and reverse action. Impact set low enough to not damage anything if the bolts don't come out.
I have a NY 06 and they all came out using this system. Impact and heat are two of your best friends when dealing with rusty hardware.

 

[glowell222]

Liquid wrench each night for a week at all of the locations. I had to do a frame swap from so much rust, and 9 of my mounts came out pretty easy - the two middle side mounts were rusted entirely away.

 

[Hoboscratch]

I’m in MN, and broke the first bolt I tried loosening. After that used a 1” hole saw to access tops of bolts, liberal amounts of kroil, and lots of patience. So far I’m down to 2 left that are still pretty tight. A little light back and forth pressure on the breaker bar coupled with my impact will get them.

Bought some CJ/YJ drain plugs to cap the holes I drilled

 

[posulli]

Thank you everyone for the input! After spraying the bolts down with penetrating fluid every weekend for a month I did the job today. Had no issues what so ever. Done in 1.5 hours. I have been dreading this for a while, glad I was patient and sprayed over a period of time. Also pretty crazy how much better the jeep drives now. no more squeeking! Thanks