The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1985 Chevy c60 ramp truck with a 1970 454, early sm465, & 2 speed Rearend????

Masstowingllc · 06-06-2013, 07:21 PM

I have 1985 Chevy c60 ramp truck with a 1970 454, early sm465, & 2 speed Rearend. So can I change the Rearend gears so when in high I can go like 65 mph and get better mileage also I am trying to figure out how to get better. Mileage and highway speeds out of this big truck? Thank you in advance
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06-06-2013, 07:21 PM	#1
Masstowingllc Registered User Join Date: Mar 2013 Location: Avon, ma Posts: 70	1985 Chevy c60 ramp truck with a 1970 454, early sm465, & 2 speed Rearend???? I have 1985 Chevy c60 ramp truck with a 1970 454, early sm465, & 2 speed Rearend. So can I change the Rearend gears so when in high I can go like 65 mph and get better mileage also I am trying to figure out how to get better. Mileage and highway speeds out of this big truck? Thank you in advance Posted via Mobile Device