Warning - Broken control arm bolt!

[CTScott]

I ran into my old ones today and did a comparison with a set of new ones (I always keep some on hand in case someone comes by that hasn't had them replaced yet).

Bolts - Old New.jpg

My old ones, which had about 25,000 miles and 4 Winters on them just had light surface rust on the threads and very light surface rust at the base of the head. The interesting thing that I did notice is different markings on the head. In theory, this would mean a different bolt strength class, but according to the service manual, for a bolt with an included washer, either one or two marks means that the bolt is a class 6T bolt.

At least, if nothing more, the changed markings allow one to easily tell if they have new ones (old left, new right):

Bolts - Grade.jpg