my 99 grand caravan 3.3 front shock is leaking on the passenger side i remove already the whole asembly i'm planing to change one side only but my question is it okey to change one or i have to do both sides. thank you

 

according to all the experts on chassis you really want to replace both struts as a matched set. with one new one and one old one, you'll have a difference in handling characteristics. on another board someone said they did this and the vehicle would dart under hitting certain bumps. and it would be a good idea for an alignment check just to be sure even though there is no factory adjustment for camber it wouldn't hurt just to be sure and if an alignment shop saw one new strut and one old one, the most likely wouldnt do an alignment because of the handling issues that would occur

 

thank you i will replace both.