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Old May 14th, 2026, 10:48 AM
beerman beerman is offline
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Join Date: Feb 2016
Location: Yardville, NJ
Truck: 1968 GMC K1500 305E SWB
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Default Re: 379 Flywheel on eBay

I was worried about the 696059 casting number on the flywheel but the books having P/N 696057. I received it yesterday and it is 16" in diameter with a 191 tooth ring gear. It will fit in a light duty bell housing without any starter issues. It will obviously needs to be drilled for a smaller pressure plate. Besides the different counter balance weights and flange bolt hole count the last 3/4" of the 305's face was machined down from the friction surface whereas the 379's face runs to the ring gear. I'll throw it on the shelf and keep it in stock.
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