Based on the context and the answer, generate a question. 

Context: This differential only has a little over 150 miles on it . I bought this unit used from a fellow with a Mustang who had it in his car but ended up pulling it for an E - locker for manual lock control . This diff is in great shape . Auburn makes a very solid LSD that will take a beating and not wear out for a long time .

Answer:

They are looking at vehicles .



What is the narrator inspecting ?