Ring and pinion choice for 4.8 LS - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Kainedogg · 02-15-2017, 07:25 AM

I am against the 3.73 in light of your single turbo goals. 3.42 will still be peppy behind the 4l60e. Stock truck ecm really comes to life with a basic tune. Tuned by Frost did my C10 a few years back. Made quite the difference, despite the 2.73's and long 1st gear in the 4l80e. I am going twin turbo on mine so a 3.4# something gear is what I plan to install after.

sangell · 02-15-2017, 12:54 PM

Quote:

Originally Posted by Kainedogg

I am against the 3.73 in light of your single turbo goals. 3.42 will still be peppy behind the 4l60e. Stock truck ecm really comes to life with a basic tune. Tuned by Frost did my C10 a few years back. Made quite the difference, despite the 2.73's and long 1st gear in the 4l80e. I am going twin turbo on mine so a 3.4# something gear is what I plan to install after.

I was going to say the same thing. If you are going to turbo it go with 3.42s, if it will say NA then 3.73s.

02-15-2017, 07:25 AM	#1
Kainedogg Registered User Join Date: May 2012 Location: MacDill AFB\Tampa Posts: 151	Re: Ring and pinion choice for 4.8 LS I am against the 3.73 in light of your single turbo goals. 3.42 will still be peppy behind the 4l60e. Stock truck ecm really comes to life with a basic tune. Tuned by Frost did my C10 a few years back. Made quite the difference, despite the 2.73's and long 1st gear in the 4l80e. I am going twin turbo on mine so a 3.4# something gear is what I plan to install after. __________________ Science flies you to the moon; Religion flies you into buildings. LeMans Turbo build http://ls1tech.com/forums/forced-ind...rbo-build.html C10 build (twin-turbo) http://www.performancetrucks.net/for...didate-501987/



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