Speedo driven gear 65 15 teeth - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stans65 · 07-12-2016, 06:50 PM

Looking for a speedo gear (15 teeth driven gear) to replace my 18 teeth driven gear (switched from 373 rear end to 308). Anyone have one? Willing to buy or swap. Stan

**VictoriaHardware** · 07-18-2016, 01:43 PM

GMPartsGiant.com has them (among other places) but I don't think GM ever made a 15 tooth for these trucks. Lowest I know of is 17, p/n 3987917.

stans65 · 07-18-2016, 08:03 PM

Thanks for the info. Am going to keep my drive and driven gears and go with a speedometer ratio adapter.

07-12-2016, 06:50 PM	#1
stans65 Registered User Join Date: Jul 2016 Location: Morgan Hill Posts: 26	Speedo driven gear 65 15 teeth Looking for a speedo gear (15 teeth driven gear) to replace my 18 teeth driven gear (switched from 373 rear end to 308). Anyone have one? Willing to buy or swap. Stan

07-18-2016, 01:43 PM	#2
VictoriaHardware Senior Member Join Date: Nov 2012 Location: Southeast Michigan Posts: 795	Re: Speedo driven gear 65 15 teeth GMPartsGiant.com has them (among other places) but I don't think GM ever made a 15 tooth for these trucks. Lowest I know of is 17, p/n 3987917.

07-18-2016, 08:03 PM	#3
stans65 Registered User Join Date: Jul 2016 Location: Morgan Hill Posts: 26	Re: Speedo driven gear 65 15 teeth Thanks for the info. Am going to keep my drive and driven gears and go with a speedometer ratio adapter.



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