As I ponder what to do with 3 cars, two of which have the ST300 transmission. One has a 340 engine that is seized up..... for now, however you put the car in park and it goes in park like it should. So, what does it take to re-condition a switch pitch converter? Also what does it take to re-condition a st300 trans? Similar to a th350 cost? Probably just try to get that 340 going and see if it moves and decide then.
Jim Weise has a Trans/converter shop that rebuilds SP converters. Probably the same place that does all his converters. At one point, Jim was looking for used ST300 converters and would send you 75.00, and a box prepaid to ship it to him. Bottom of post #1, https://v8buick.com/index.php?threads/vp-converter-trans-visual-id-guide.143723/ "For you junkyard hounds.. print this out and throw it in your toolbox.. I actively purchase any 12" unmolested VP converter I can find. I pay $75, provide the box and pay for shipping, for a good 12" core (can't be a Poston (PAE)) unit, this offer only applies to a stock, untouched core. These cores are located in ST-300 two speed transmissions, in various 64-67 GM A bodies. I have also found them just laying in a "converter pile" in a junkyard in the past. I will ship you a box, plug and return lable along with a check for a good 12" VP converter.. all you have to do is take out your check, plug the converter and stick the Shipping paid lable on the box, and take it to a UPS shipper."
