SS6 bags for front of '68 250?

[Hasselhof]

Hello gentlemen. Was planning on just doing a static drop on my truck, but figured I already had the air ride parts for my 69 MB benz project that is on hold, that I'm gonna put them in my chevy instead.

The bags I had were ss-6's for all for corners. I know everyone tends to run a ss7 on these trucks, so I was wondering if the 6" bag is going to be adequate for a inline6 truck?

Also, the lower bag cups, do they need to bolted down to the control arms? Never seen a solid answer on this as most seem to just say that they're placed in.

Thanks fellas.