There are 3 shafts (drum, sprocket and idler). If you are disassembling, a light coating of marine grease works well. for anything else that moves, a light lube works well. Don't over tighten the chain/cables -- it causes friction and premature wear. You want about 1'8" of "pinch" on the idler and front cable and about 3/16" at the rear drum cable. Adjust from front to back (idler first). When properly adjusted and lubed, the Drive should move without any resistance. The V-2 Drives are pretty bullet proof. You don't need to baby them. Just rinse after salt water and lightly lube. BTW, when reassembling the sprocket chaft, snug the Allen head retaining screw only. Secure with LocTite Blue so it doesn't back out. If over tightened, you can crack the spine.