If direct and forward clutch packs in a common 3-speed automatic transmission are applied at the same time, what will be the resulting condition?

When both the direct and forward clutch packs in a common 3-speed automatic transmission are applied simultaneously, the transmission's clutches effectively engage in a way that causes a conflict. The direct clutch typically engages the direct drive (third gear) while the forward clutch is responsible for the operation in lower gears as well as allowing for the normal shifting of the transmission.

Applying both clutches at the same time creates a scenario where both sets of gears attempt to turn at the same time, which leads to mechanical conflict. This situation results in the transmission locking up, preventing it from moving in any direction, whether forward or reverse. The combined engagement does not allow for the normal operation of the gear system, leading to a jammed or locked up transmission condition.

Therefore, the situation described confirms that the resulting effect of trying to engage both direct and forward clutch packs at the same time would be a transmission that cannot drive forward or reverse.