Just in case someone reads the 2009 portion of this revived thread with interest, the question was a pilot bearing to fit a 235 using a factory equipped Powerglide transmission (which did not use a pilot bearing) for a manual tranny (which did.) GM did not list one.
GM drilled all their 235 crankshafts for a pilot bearing, but did not machine the rough hole for a pilot in the cranks they used for the Powerglide since it did not need one. (Saved a few bucks.) Therefore, they did not make a pilot bearing to retro the Powerglide crank to a manual tranny...
I used a 235 out of a 57 Nomad w/Powerglide for my 54 3100 w/3sp manual. The pilot that came with the clutch kit was .030 or so too large in diameter. Wahhh!!! (It fit the machined hole for a standard 3 sp manual crank.)
Dorman 690-034 was the closest I could find to fit this raw hole and make this conversion. It mikes 1.060 which is a tad loose. I dimpled it about 20 times around the outside with a center punch and drove it in using red Permatex. Perfect.
