Yes, non-payment of wages (only Nugent had the contract with CBS, he dropped the "Band" from Ted Nugent Band prior to negotiating with CBS, but failed to tell St. Holmes, Grange and Davies) was an issue that led to the breakup according to the liner notes, plus turning down of stage volume of all other players except Nugent, relegating them to certain stage areas (quadrants), not accepting their songs, but witholding co-credits where they participated in the songwriting of his songs. Interestingly enough, neither Grange nor St. Holmes were fired but left. Nugent couldn't fire them because his contract to his manager prescribed that Grange and St. Holmes were to stay in the band (after St. Holmes had gone AWOL during the recording of the second album Free for All), the manager wondering about the band's commercial continuing viability once they left (turned out he was right).
Nugent began to pay wages again eventually, but by that time the bridges between him and St. Holmes and Grange were burnt. His relationship with Cliff Davies (the Brit drummer from fusion-guys If) lasted longer because Davies had proceeds from his job as producer of Nugent's early albums.
And Grange did become a realtor in California. Cliff Davies died from a self-inflicted gun "accident" - of all things - in 2008, but he was stressed out at the time due to large medical bills. St. Holmes played with St. Paradise, Brad Whitford, MSG and - intermittently - with Nugent again, but nothing ever clicked.