The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Using a Super T-10 4spd behind a GM??

burnin oil · 01-20-2020, 12:08 AM

Nv4500 is definitely a granny. First Is around 5.6:1 for the higher ratio. Lowest factory granny I know of was a sm420 at 7.20:1 for a light truck. Ch465 was 6.54:1. The nv3500 low gear 1st was 4:1.

01-20-2020, 12:08 AM	#14
burnin oil Registered User Join Date: Jan 2013 Location: Eastern TN Posts: 1,921	Re: Using a Super T-10 4spd behind a GM?? Nv4500 is definitely a granny. First Is around 5.6:1 for the higher ratio. Lowest factory granny I know of was a sm420 at 7.20:1 for a light truck. Ch465 was 6.54:1. The nv3500 low gear 1st was 4:1.