Symptoms: Occasional vibration or low rumble, most noticed accelerating slowly. Harshness at most times, like driving over a rough road. Infrequent ticking noise from rear end, most commonly heard when driving next to fence or concrete barrier.

Does this sound like a driveshaft u-joint issue?

If so, is there any way I can determine which size u-joints I need without removing the shaft? I'd prefer to have them on hand, rather than borrowing a car.

Brand recommendations? It appears that the online options run between "way-too-cheap-to-be-any-good" and "you-want-how-much?" Advance Auto lists MOOG for about $25 each.