Exhaust clamp and valve c-clip size?

[ZeusHavok]

Anyone know what size the clamps for the backbox to the midpipe need to be roughly. Gonna have to pull mine off for a valve repair and no idea on the size. Also anyone know the sizing for the little c clips that hold the valve pushrod to the little arm that moves the plate? I seem to have lost one.

Image of the missing c clip:

 

[GARETH]

The pipe clamps are spot welded to the mid pipe and should only need slackening to release the back box. I sprayed plenty of easing oil on the clamp, undid the nut and dislodged the two halves with a sharp smack with a hammer and punch. The clamp stays on the mid pipe.

Remove the lower bumper section and pull the rubber hangars off to give you some work room to wiggle the box until it comes free. I did work up a sweat getting mine off!

 

[ZeusHavok]

Oh aye I know all that. I just need to know the diameter range of the clamps that hold the rear midpipe to the backbox and the c-clip size for the valve arm.