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.There are some good how to videos on youtube to change all the bushings top and bottom it took a 6 ft cheater pipe to break the passenger side nut on the bottom a 3/4 extenstion goes thru the hole in the bumper straight up to the nut 1 3/16th i think it was i just replaced the bottoms on mine the tops looked good my 1 inch ingesol rand tire gun wouldnt break the pass side the driverside just unbolt the infared light in the bumper to access the nut on that side
I was in agreement until I finally started trying to replace the "biscuits" on my M1089 wrecker. Your directions and the videos are right for more than 90% of the LMTV / MTV trucks. I have not found a video for a truck with a winch and replacing those "biscuits". There is no way to get a socket and impact wrench in the pocket where the nut and the end of the bolt live.
In some other thread here, I wrote up some of what I did. Ultimately, we used a dremel with a cut-off blade split the nut. Then used a large chisel and beat and banged on it to split the nut and slid it off the bolt. After that, it was ready to receive a new bolt, nut, and biscuit. Wrenches are the only way I could find to tighten those bolts.