Can Anyone Help Or Got Any Info

[indian driving a for]

I Have A 1986 E-150, It Has The Over Drive Tranny, I Have A Serious Vibration At 35 Mph, As I Speed Up, It Goes Away Until I Reach 60 Mph, Yeah I Know, Just Dont Drive Those Speeds, Ha! Ha! Anyways I Have Changed The U-joints, Had The Drive Shaft Checked And Balanced, Checked All The Tires And Rims, I Cant Figure It Out!! Before I Go Buying This And That, I Thought I Would Ask Here, What Can It Hurt Right? My Father In Law, Who Worked Alot On Ford Race Cars During The Early 1950`s Drove It And Said, A Axle Was Bent And Had A Bearing. His Friend Was There During This Evaluation Period And Said It Was A Torque Convertor Or Front Pump In Tranny....who Is Right, Or Are They Both Wrong....... :-x02