Re: Autogear with 3.08 rear
Just do the tremec. It's not a hard install at all. It's mostly internet hype about it. Mine went very smooth. Cut the hole, move the crossmember back, drill 2 new holes. Make a patch from plain sheetmetal, weld it in. I found a junkyard driveshaft the right length. Done. It was that easy.
Just the 3.08 isn't going to cut it at modern highway speeds. Mine has 3.08 and 26" tires. Speed limit on the highways here is 70-75, so everyone is driving 80-85. That equaled sitting in the right lane getting passed. Now with the TKO 600 and 3.08 I am doing 80-85 in the fast lane with all the modern cars. Now we take the Chevelle out of state on long trips all the time and don't worry about it. It's well worth it.
66 Chevelle crew cab 454 FiTech TKO 600 5 speed