the cradle is what the engine sits in and is bolted to, if you look under your car you will see 4 bolts at the ends of the this cross frame,aka cradle, kinda like a K member, put a jack under the back side, where the rack and pinion is, loosen the back 2 bolts and lower the jack, don't let the cradle hang on the bolts, leave the jack under it/ holding it up still while working on it., when done jack it back up and tighten the bolts back up. mine were 18 mm bolts.