Front Pipe/ Cat flange bolts

[UNL1MTD]

My Cat's output cracked 100% off last weekend. I bought a direct fit replacement along with a new front pipe. The bolts at the flange are rusted crazy bad. They don't appear to be anything special, but does anyone know their size off the top of their head?

 

Thanks,

 

Sean

[dasbulliwagen]

I would think that they are 5/16 or 3/8 bolts, but couldnt tell you the length. They really are nothing special, but if I were you, I would buy twice as many nuts as you need and double nut the bolts to act as a lock nut.

[Eagle]

5/16" IIRC. And IIRC there are two each of two different lengths.

[creekscout]

the crossmember exhaust hanger has two of the flange bolts pressed into it, at least on the one I got from the dealer to replace my rusted apart hanger.