New Rebuild No forward gears

He says he air checked all the clutches & servos and when I dropped it back off that it might be in the Valve body??
Here is the list of all the parts I had put in 727 Ultimate Sprag 1966-up plus a Billet Steel Front Drum727 Heavy Duty Band Strut 2nd gearTrans Blanket Short 2" Pan727 Front Solid Band Red Lining NEW727 Race pump 1971-1978 only727 Rebuild Kit-Race 71 & up727 Rear Roller Support727 Low Reverse Band Red Lining