Ben and Scott started Gruntruck as a side-project in 1989; later, as Skin Yard wound down, this band began to take off, eventually selling more records than Skin Yard ever did. "Inside Yours", recorded by Jack and initially released in 1990 by Seattle's eMpTy Records, was reissued in 1991 by Roadrunner with two extra songs.

Those who played:

Ben McMillan: vocals and guitar.
Tom "Accüsed" Neimeyer: guitar.
Tim Paul: bass.
(Norman) Scott McCullum: drums.