Picked up a 71 cj5 and am looking to put a 350 in it. Anybody know what the best manual tranny out there would be for it? Want it to be a more of a driver than a trail jeep. I was looking into the sm420's due to their size and convenience... Although I know no matter what the rear axle will have to be moved back. But they aren't the greatest for just driving. Any other options out there?