[mccaslin0]

I occasionally get a hard thud sound (with vibration) when I power shift from 1rst to 2nd. Guess I should be surprised- also have traction control turned off. Is it probably the differential not handling all the power?? Definitely does not feel good, but also think I remember getting something similar when i had a 5 speed s10 years ago. Should probably be more careful putting power to shift wheels and shifting too quick.

 

[R1600Turbo]

I occasionally get a hard thud sound (with vibration) when I power shift from 1rst to 2nd. Guess I should be surprised- also have traction control turned off. Is it probably the differential not handling all the power?? Definitely does not feel good, but also think I remember getting something similar when i had a 5 speed s10 years ago. Should probably be more careful putting power to shift wheels and shifting too quick.

Soft engine mounts will do that. If that is something you do regularly, I would look into replacing the lower mount (torque rod) with either a whole new unit, or replacing the bushings with something stiffer.