Drive shaft or U joint maybe. But I would think that those would affect through all speeds and RPMs.
Can you lift and set it on jack stands and see if you can recreate the issue with the tires off of the ground? That would be a good way to half split if it’s in the driveline or drivetrain or something off balance that contacts the pavement.
1995 Z71 standard cab stepside
Swapping to 1996 Vortec OBD II
Can you lift and set it on jack stands and see if you can recreate the issue with the tires off of the ground? That would be a good way to half split if it’s in the driveline or drivetrain or something off balance that contacts the pavement.
1995 Z71 standard cab stepside
Swapping to 1996 Vortec OBD II