RE: Need help with rear subframe mounts
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Driller:I believe you need to either use the blue wrench on it and replace the bolt and nut or try and get an air chisel up there to break the nut as the nut was welded on originally (?). More character building opportunities
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Wow, we think alike.
I ordered the bolts, nuts, rubber isolators and top reinforcements today from Max at Five Star Ford and had them shipped 2nd day air. I stopped by the shop after work today. I had brought a hole saw with me and drilled a 2" hole in the side of the box section adjacent to the location of the nut.
What I discovered was the flanged nut was spinning with the bolt. Approximately 3/4" of bolt was still through the nut and the square flange had bent the retaining tabs used to hold the nut from turning upon assembly. Using the hole as access to the nut, I used a small torch, heated the nut and clamped a small pair of vice grips on it and proceeded to use an impact wrench on the bolt. It partially unscrewed and then seized up again. I repeated the application of the blue wrench once more and again attacked the bolt with the impact wrench. Finally the bolt came unscrewed from the nut. But it still refused to come out of the isolator assembly.
I resorted to the air chisel attacking the reinforced top 'cap', chopping my way to the center where the bolt was still lodged. After about an hour, I had won the battle with the remnants of everything laying on the shop floor.
It appears the replacement of the new rubber isolator will be a real challenge! It's like putting a 3" rubber rivet through a 2-1/2" hole on the subframe(all this while still on the car).
Tomorrow, I will build more character with removing the other side! }(