Shock bolt alert

[adj]

While replacing my front shocks, I ran into difficulty with the left bottom bolt. The nut was backing off normally when it froze up after moving approximately 1/4". Once off(hours later), inspection of the threads revealed severe damage to both bolt and nut. The only logical explanation for this occurance is something had been thrown into the exposed threads which created a bad spot on the threading. If I would have inspected the threads prior to removal, I would have been able to repair that area.

[DriVer]

Quote:

Originally Posted by adj If I would have inspected the threads prior to removal, I would have been able to repair that area.

adj, You just can never figure that these types of things are going to happen but road debris may have impacted on that bolt and created the damage. I know that the bolts are put on at the factory under very controlled conditions and are torqued by the installation tool. If the threads were that bad going on the tool would have stopped and they would have changed the bolt.

I have had my own road debris damage. On my beautiful Gibson exhaust tips, I expect that a stone came up and put a impact dent underneath the pipe. It's not visible so it's not too bad - but I know its there.

i don't expect that I would be able to put that type of dent on the pipe using a hammer but it's there. It's not nice to fool "Mother Road Debris!"

[RocketDork]

The damaged threads could have been the result of galling too. It happens most often in Aluminum and Stainless, but when you have two of the same material moving past one another, they can gall.

[adj]

[QUOTE=DriVer;637674]adj, You just can never figure that these types of things are going to happen but road debris may have impacted on that bolt and created the damage.

I agree that road debrie caused this. When I installed the Monroes 20000 miles back, I didn't have this problem. All the bolts were tight but nothing like this. Now I have Konis installed.

[oemtech]

I have had 2 top shock bolts give me problems. 1 I had to cut off with a gas axe. Part of the problem, in my opinion, is the use of fine thread, "crush nuts" and high speed 1/2" air ratchet.