You can also use a castle bolt (pan head) and nylock nut. I used those in my front cargo to make room for two 1 gallon rotopax. Not enough room with the lock and ride handles. I don't typically take off my cargo boxes so I don't have a preference with a bolt or the lever lock. I still have the lever locks for my rear polaris lock and ride and they haven't failed yet.
I think the Lock & Ride hole/plunger systems has been in place since about the 2005 model year on all Polaris ATV & UTV's. The XP's have both front and rer rack holes, where the Value Line on ly has them on the rear rack.
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