stuck in forward gear?

[jkeesey]

First off the bat I'm working on a 23 TT with a 26/7 transmission. When I step on the starter it will not turn the engine fast enough to start but simply wants to push the truck forward. I adjusted the bands very loose to eliminate that possibility so I'm thinking to maybe adjust the clutch fingers at the tail side of the transmission. Does this sound right or am I just pissing in the wind?