hi all. fully enjoying my new to me fj40. slowly working on things to make it better and such. read lots of posts on vaccum and leaks etc. some of my lines look questionable dried out etc. purchasing a vaccum gauge and some new tubing to replace some lines. whats the common sizing for fj40. i see 1/8 inside and 5/32 inside etc on amazon. should i try to get a multi pack,are some bigger than others on the fj? thanx in advance.