flexplates

Q: The 350 engine in my 1990 Chevy truck needs a flexplate. Some guys tell me it’s internally balanced, while others say it’s externally balanced. I don’t know which flexplate to order. Can you help? A: Prior to 1986, all Chevy small blocks were internally balanced (except the 400). These two-piece rear main seal engines had

Watch this video from our friends at TCI Auto to better understand a flexplate’s role in automatic transmission operation. You learn how the flexplate connects the torque converter to the engine’s crankshaft, functioning in much the same way a flywheel does on a manual tranny. You will also hear about stamped and machined flexplates, how they provide an