grade and size of bolts for k frame and torsion bar bracket

[ND74ROADRUNNER]

anyone know the size and grade of the bolts that hold the k frame and torsion bar bracket for a 74 roadrunner

 

[nstyle73]

5/8" by long. :}. I will measure tomorrow, but a 15/16 socket fits the head.

 

[rrTor-Red]

http://www.ebay.com/itm/NOS-MOPAR-K...-Dodge-Plymouth-Dart-Challenger-/321973785233

This Ebayer has them and others. These are the OE type and I think least grade 8 and huge. They are torqued to 150 Ft. lbs too. When I installed mine, I put anti-seize on mine

 

['68 Charger]

anyone know the size and grade of the bolts that hold the k frame and torsion bar bracket for a 74 roadrunner

If you're talking about the K frame to frame OEM mounting bolts, they are 5/8" thread dia. and 5" shaft length. It takes a 15/16" wrench for the hex head. I have a set (see pic below). $20.00 + shipping.