If it is anything like my Cat you will need to drill out the rivets and rivet in a new one. If you take out the rear skid and drive axle it should be easy to get to all the rivets to replace. Sounds like you have a couple in tight spots in the front. I didn't take my cooler out just added to it. There is a thread on here that has links to sites that have exploded views and part numbers for your sled, do a little searching around to find the thread I think it will help.
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