The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 55.2-59 59: Electronic ignition upgrade?

burnin oil · 01-31-2020, 11:37 PM

Be careful with that axle gearing. Although your cruise RPM is nice your first gear has some seriously long legs. I am not sure that you will be to happy with it if you have any hills from a stop or if you ever use the truck to haul anything. Don't forget this also has alot to do with driveability in parking lots. Your graph shows ideling in first gear at around 7mph. Not to mention your motor does not make a ton of torque to start with. You may be better served with a 5spd from a holden that has OD and keeping your rear gear.

01-31-2020, 11:37 PM	#15
burnin oil Registered User Join Date: Jan 2013 Location: Eastern TN Posts: 1,921	Re: 59: Electronic ignition upgrade? Be careful with that axle gearing. Although your cruise RPM is nice your first gear has some seriously long legs. I am not sure that you will be to happy with it if you have any hills from a stop or if you ever use the truck to haul anything. Don't forget this also has alot to do with driveability in parking lots. Your graph shows ideling in first gear at around 7mph. Not to mention your motor does not make a ton of torque to start with. You may be better served with a 5spd from a holden that has OD and keeping your rear gear.