[QUOTE=e3NiNe]My transmission does this all the time. When I shift from D4 to reverse, I hold down my brakes until I know the car has shifted. If I let go too early, I feel that small jolt.

I always experience the same thing in my car but the other day i was force to do a radiator flush ( due to hose braking) and refill it until it was super clean.
anyway ever since the flush when i shift from park to reverse or any gear I no longer feel the small jolt u experience.

I have no clue what the tranny has to do with this but I can tell u when shifting from park to reverse it feels the same like if u were shifting d3 to d4 smooth almost zero shaking.