If you look at longhorn's pic, his V8 towers mount to the front of the crossmember........the 6/250 towers mount to the rear of the crossmember. To answer the Q, yes they are different parts(6 to v8),but you can use either set. the 6 /292 towers are different (staggered), & cant be used to mount a v8. I would set the towers down on the frame, & see which set of holes line up.......6/250 stands in proper position should leave 1 bolt hole showing at the top of the frame rail ea side(ahead of the stand). Hope that helps.......Crazy AL
