Yeah I do alot of Fwy driving so 3"73's need to stay about 60mph to keep it under 3k rpm on the I6
Since I want a Posi I would need a new carrier anyway so looking at this combo for posi and gears for my 72
Eaton Diff
https://www.summitracing.com/parts/etn-19587-010
gears
https://www.summitracing.com/parts/m...=true#overview