My '95 NA has only slightly over 30K miles. Rear end was replaced under extended warranty. Metal particles found in oil. This shouldn't have happened with low miles on easy driven car? Had accident involving undercarriage. Didn't notice that State Farm slipped in "quality replacement part axle shaft". If our axles are 2 pieces could their be any incompatibility issues between right(replaced) & left(not) to make rear end go out in less than 1000 miles? Improper installation? Wheel bearings replace on right side only both f & r? What all parts should be included in replacement. Differential,etc. Does have LSD right? Replace any of these components. Need to be sure this job was done right! Extended warranty up Jan. 1 so correct repair critical! Thanks in advance for any helpful response!