Transmission & the front axels. I think they are referred to as CV Boots*

1st my Nissan has been a wonderful "baby". She has very high miles. 182,000+.
When I crank her I let her "warm-up". When I slide from ie: P to N to Drive, P to N is smooth. When I slide her into Drive I feel resistance. Not much but, I know my car. No "Thump". Away I go w/no slip. Responce? Filter, fluid, etc. 2nd I replaced the front axels 3-4 yrs ago. Bought the axels from Advanced Auto. These parts should carry a lifetime wnty? When I turn R, hard I hear a clik, clik, clik. Once I removed the tire I saw the boot surrounding the joint had "blown-out", removing the left it was fine & no cliking. Should the R axel be covered? I know you may not be able to answer that question. I will look into it. What are your thoughts, on what I've described. You guys helped me out before quite a while ago, and you were "spot-on" Help me out if you can. Ty, Christopher Mercier. My #404-859-3888. My email. Chrismbuckhead@aol. Com. You guys are "all-of-that & a bucket of chicken". LOL! Much Obliged Gentlemen. Ps: I will gladly donate, but I must know it is a secure site. Please understand.