REAR Bumper guard Lower Bolt

[R/T4ME]

I am trying to figure out what size and Theard bolt is used in the bottom of the rear bumper guard for 1970 Challenger shown below.

It is the bolt that connects to the frame bracket, it is close to a 5/16 X 18 but that will not work.

I am thinking it must be a special bolt.

Matt

 

[MOPARMITCH]

I am trying to figure out what size and Theard bolt is used in the bottom of the rear bumper guard for 1970 Challenger shown below.

It is the bolt that connects to the frame bracket, it is close to a 5/16 X 18 but that will not work.

I am thinking it must be a special bolt.

Matt

View attachment 151807

View attachment 151808

It shouldn't be a special bolt. It is probably 5/16 or 3/8. The captured nut in the unit may be stripped or the threads may be gawled