The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 55.2-59 Flywheel and Starter Combination GMC

IamBrian · 04-02-2021, 09:29 PM

Hahaha yes the early Pontiac powered GMCs are different - guess that’s why I like them too. My 55 one ton has the 288 (Pontiac calls them a 287 and the 56 came w a 316) but GMC calls it the 288 and the 317. No biggie.
Any way, it sounds like you’re installing a stick shift tranny, not the early hydramatic - they came both ways. I’m not sure I can still look at my flywheel to count the teeth but I have my engine sitting in my shop w the bell housing installed. I also have a hydramatic sitting around with the ring gear I took out.

04-02-2021, 09:29 PM	#8
IamBrian Registered User Join Date: Jul 2011 Location: Hatton, ND Posts: 36	Re: Flywheel and Starter Combination GMC Hahaha yes the early Pontiac powered GMCs are different - guess that’s why I like them too. My 55 one ton has the 288 (Pontiac calls them a 287 and the 56 came w a 316) but GMC calls it the 288 and the 317. No biggie. Any way, it sounds like you’re installing a stick shift tranny, not the early hydramatic - they came both ways. I’m not sure I can still look at my flywheel to count the teeth but I have my engine sitting in my shop w the bell housing installed. I also have a hydramatic sitting around with the ring gear I took out.