Invader Suspension Bracket Question

[Metalman]

I got the track off the 80 Invader today and found the rear suspension brackets have been previously welded.
 I have a couple of other suspensions for parts that have bent rails, etc so I can't just slide  one of those in. 
 If I drill the rivets and put on different brackets should I use blind rivets to attach the brackets to the rail or can I use grade 5 or 8 bolts?

[mswyka]

I normally use bolts and lock nuts to re-attach suspension brackets.  Off hand I can't remember if they were 1/4 - 28 or 10 - 24.

[jimvw57]

I have a suspension I installed that was completely bolted together and have not had any issues with it.

[Metalman]

Thanks Guys!

[kawhead]

steel pop rivets work fine

[jimvw57]

Stainless steel bolts were used to keep the rust to a minimum