Noticed on my datsun 620, the longer drive shaft has a small dent, ill get a pic of it tomorrow, should i be worried about this? also, when you take the rear yoke off the front shaft to replace the carrier bearing, do the front yoke on the slip yoke part, and the yoke the bolts up to the rear of the front drive shaft need to be on the same "plane"? thanks in advance for your help.