02 Extreme won't shift pass 35mph

auto tranny, only 47k miles, just had the driveshaft replaced recently.

Just started having a shifting problem, sometimes it shifts, sometimes it don't.
What should I check?
Also the speedometer/tach jumps but no change in in engine noise.

Is the check engine light on?

Solenoids in trans could be bad so have a trans shop do a free check - also after up to 35 what gear is it in. The sun shell breaking loses rev/2nd/4th.