Some like to do them on the car so the rack is held in place while they are removing them, but I prfer to have it out myself. Therev are two different tools that can be used to remove them made by Lisle tools, the first being a "universal" type part # 46600 that uses 3 set screws to grab the flats on the end to remove it. The second they make is a set part # 45750 which uses the crows feet adapters to grab the flats.
I prefer to do a spare rack, myself, and swap it out, but that is because they can still be a real pain to get loose from the rack because of either a locking compound that was applied, or galvonic corrosion that happened due to unlike metals "welding" them onto the rack. I never have figured out which one it is for certain.
Also keep in mind that early cars have washer that were folded over to "lock" it in place, and later cars had roll pins installled that will likely have to be drilled out. Ther are also different pitch threads between the two racks, one course, other fine threads.
HTH
Michael
I prefer to do a spare rack, myself, and swap it out, but that is because they can still be a real pain to get loose from the rack because of either a locking compound that was applied, or galvonic corrosion that happened due to unlike metals "welding" them onto the rack. I never have figured out which one it is for certain.
Also keep in mind that early cars have washer that were folded over to "lock" it in place, and later cars had roll pins installled that will likely have to be drilled out. Ther are also different pitch threads between the two racks, one course, other fine threads.
HTH
Michael
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