1966 K10 Axle Gear Ratio - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**AlaskaK10** · 07-20-2023, 07:12 AM

Hi Everyone

Got a question ....On a 1966 K10 what were the factory gear ratio? I think mine are 4;10. If so am thinking in todays times a higher gear ratio would be better. So far my plan is to run a 292 with a SM420. For the sake of originality except that I am going to switch to disc brakes and I am not opposed to keeping the closed knuckle front axle but would not rule out going with open knuckle. It probably would be cheaper to find a matching front and rear end out of another truck than say changing gear carriers what say you?

07-20-2023, 07:12 AM	#1
AlaskaK10 Junior Member Join Date: Mar 2023 Location: BREMERTON Washington Posts: 79	1966 K10 Axle Gear Ratio Hi Everyone Got a question ....On a 1966 K10 what were the factory gear ratio? I think mine are 4;10. If so am thinking in todays times a higher gear ratio would be better. So far my plan is to run a 292 with a SM420. For the sake of originality except that I am going to switch to disc brakes and I am not opposed to keeping the closed knuckle front axle but would not rule out going with open knuckle. It probably would be cheaper to find a matching front and rear end out of another truck than say changing gear carriers what say you?

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