Dorman 690-034 is the pilot made to convert a Powerglide engine to manual. The stock manual pilot is about 1.09 OD. The Dorman is about 1.06 OD. The Powerglide equipped engine did not require a pilot so in their infinite wisdom GM did not ream the hole in the crank for one. Never imagined that idiots like us would want to mate a 3sp to a Powerglide engine. My 235 came from a known Nomad with Powerglide. The 690-034 was the pilot that converted the Powerglide engine to the 3sp tranny.
