They all have rivet from the factory. Those mentioning bolts have previously done some other modifications, such as replacing the bushing or installing a lift kit.
Do a search and read some of the other comments on the same topic. I remember someone replacing them without grinding out the rivets. Eitherway it is a chore.
Do a search and read some of the other comments on the same topic. I remember someone replacing them without grinding out the rivets. Eitherway it is a chore.