[kk68]

Originally Posted by dataway

For those of you with a 68 ... how is the metal shroud top plate fastened? Are they sheet metal screws that just thread into the top of the core support? Or are they machine screws that thread into some kind of nut on the underside of the top of the core support?

If they are machine screws/bolts ... what size?

I think most of the sheet metal screws are like 3/8 - 10, or 3/8 - 12

Before I drill into the repop core support I need to know what size to drill

For the 4 marked along front edge of top plate below, they are machine screws that thread into the rectangular nuts welded to underside of core support as shown in attached pics. I think the screws are 5/16 - 18.

You may want to use the rivet nuts like you used on the lower part of the core support which came out nice.

One tip I found helpful when you do the final installation of the top plate is cut some 1/8” or 3/16” rubber washers from some 5/16” id gas hose and place at each screw location between top plate and top of core support. This will raise the top plate just above the core support top and prevent your freshly painted parts from chipping/scratching where metal meets metal.