No, i am not saying it caused the driveshaft problem--or what caused the issues of the rear, i am just saying this is what i found. I believe the car broke a u-joint from what i remember. It is from installing the center section to the housing. The small piece i found in the housing between the two pinion gears.

Once i removed the the suregrip/ring gear assy, the pinion was still very tough to turn. I don't see alot of metal in the rsection, but the bearings show wear like that. I wonder if the metal is was in the fluid/housing. Hard to say as i was only brought the center section aftyer the fact. I just also wanted to warn others about the over use of silicone sealer as i have often seen it overused to seal third members, but this is the first i have seen some get loose inside.

The strange squiggly marks on the rear pinion rollers are just on that bearing. The others seem fine, but the races---all of them to me seem like they they show some fine metal ran through the whole rear. The sure grip unit showed some almost paste like grey metal goop (like a fine metal suspended in oil) sitting on some parts of the suregrip. I wish i could have seen what the oil looked like when it came out of the rear. I did the setup a few years ago on this and the turning torque for the bearings was within factory spec--in fact i tend to be on the looser side of the spec, so i personally don't think it was tight. The gear pattern still looks good.