Curious, which one holds up the best in a fairly heavy duty truck?
NV 4500? Getrag? 5600?
Was looking at doing a 5-speed conversion behind a 440 in an '85 1-ton years ago, so I haven't kept up with updates lately. Or trans technology. Anyone do the swap these days or just buy a newer truck?

1969 Dart GTS 340
1969 Super Bee X9 N-96
1969 Coronet R/T X9 N-96
2015 Dodge Dart GT
2019 Ram 2500 Big Horn.
Looking for the original block for my Bee. The last 4 are 7449