The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Trying to figure out if I will need to regear my rear end

D-n-Tyke · 02-24-2023, 06:04 PM

I am trying to figure out (and then possibly budget) if I will need to regear my rear end. Going to be running a 6.0/4L80E. Current gears in the rear end are 3.08. Anyone running this set up and having it work well for them. I would like to get half way good gas mileage, well as best as I can thru gearing, not running high RPM on the freeway, but also don't want it to be a slug off the line. What do you guys suggest, run what I have, or regear it?

4L80E Ratios
1st 2.482
2nd 1.482
3rd 1.000
4th 0.750

R&P 3.08

02-24-2023, 06:04 PM	#1
D-n-Tyke Registered User Join Date: Aug 2016 Location: El Cajon, CA Posts: 311	Trying to figure out if I will need to regear my rear end I am trying to figure out (and then possibly budget) if I will need to regear my rear end. Going to be running a 6.0/4L80E. Current gears in the rear end are 3.08. Anyone running this set up and having it work well for them. I would like to get half way good gas mileage, well as best as I can thru gearing, not running high RPM on the freeway, but also don't want it to be a slug off the line. What do you guys suggest, run what I have, or regear it? 4L80E Ratios 1st 2.482 2nd 1.482 3rd 1.000 4th 0.750 R&P 3.08