[57taskforce]

Given your plans, I’d just stick with the 12 bolt. With a set of axles and gears it should be plenty strong as long you don’t drive like an idiot. I know my dad had a 71 K10 with 38’s and stock gears in the 90’s that never had a problem with the rear end. He mudded that truck from time to time with no issue. They are plenty strong for what they are. I believe the kiss principle applies here... keep it simple stupid! Both 14 bolts are stronger but I doubt you’ll need the extra strength vs. the extra pieces of the puzzle you’ll have to put together to make either rear work. If you were going to swap the front axle than I’d say 14 bolt ff/3/4 ton 44, ten bolt or even a 60. Given you don’t want to swap the front keep the 12 bolt.