This is a subject that I could use a little help on. I'm not stupid at math but for some reason I have trouble with gear ratios vs transmission vs tire size. My truck is a 47 1/2 ton will have the hot rod look just not the v8 go. I am using a 235. Wanted to go the Saganaw 4 speed with the 3.11 first gear and 3.55 rear end route. Trouble is I have a wide ratio muncie 2.54 first gear that I need to use. What rear ratio should I be looking for so I'm not slipping the clucth taking off and be able to cruse at 60? I have my eye on a 77 k-10 blazer with 3.42 rear gears. How do you think that 3.42s would work? I'm in the build stage so I have not made up my mind on tire size but I have some nice 15x7 rims I'd like to use. Thank you for any help.